Database Develop

Domestic Unlock of 4.3 & 4.4.1 (NAE) galaxy s4

Okay, I just got through doing this myself and it seemed that nowhere was this all said at once, or at all. So I thought I'd whip up a quick tutorial concerning how to Domestic Unlock the Samsung Galaxy S4 on any of the newer bootloaders/firmwares/modems. (Knox-enabled)
I did this on both a 4.4.1 galaxy and a 4.3 galaxy- one one NAE and one on MK2
First, for anything to work your modem must be an older one, like version MDL. Download the file SPH-L720_MDC_Modem.exe which is a one-click
Odin .exe that will flash ONLY your modem to MDL.
Steps- put into download mode by taking the battery out and putting it back in. Hold the volume down button, the home buttone and then press the power button. When it vibrates, let go. Press volume up.
Run the SPH-L720_MDC_Modem.exe odin one-click installer.
Connect the usb to computer from phone
when com[24] or whatever shows up, press start.
Now, for the domestic lock to work you first need to do the international unlock @ http://forum.xda-developers.com/showthread.php?t=2415587
It's real easy and explained well at the link above, but I'll run through it quickly anyways.
Download the s4unlocker installer from the post linked above.
Put your phone into diag mode by dialing ##3424#. Press Qualcom button and select the bottom selection.
connect (if it wasn't already) usb from phone to PC
You already installed the proper samsung drivers, right? If not, you'd better do that now.
Okay, now run the s4unlocker and press the scan and unlock button, then wait for the phone to reboot.
Now for the Domestic Unlock part.
Follow the directions at http://forum.xda-developers.com/showthread.php?t=2530610
I'll run through it real quick, too because there were a few things I wanted to mention.
dial *#0011# (or #*0011#, I can't remember)
when it comes up "No service", press the menu key on the bottom left of your phone. This brings up a menu (wow!), on which you should press "back"
Now press the menu key again and in the menu select "key input" A box will open up asking for you to type in something- enter a "1" and then press the enter key BEFORE hitting the OK button. Mine would not work unless I did this.
Now wait, sometimes it takes a good couple of seconds to give you the menu. Follow the rest of the directions from the above link, setting all the settings to what is stated. EXCEPT where he says to set all the preferences to WCDMA ALL, GSM ALL and LTE ALL. When I selected one, however, an asterisk appeared after my selection leading me to believe that you can only select one of these and so I set mine to GSM ALL and left the others alone. This worked for me, so I thought I'd mention it.
Now that you've manually rebooted after following the directions, you still have to edit your build prop to allow you to edit the apn settings. To edit your build.prop you must be rooted so root with CF auto-root http://autoroot.chainfire.eu/ download the proper one for the galaxy s4.
It's just an odin flash, so enter download mode
load up odin 3.x
hit the pda button and select the cf auto root tar
hit start.
After rooting I found that one time I had to do some of the service mode settings again and one time I did not, so I mention it here even though I think I had to because of some other error I had made at the time.
Go to play store and download build.prop editor and APN settings Shortcut
Load the build.prop editor and add these two lines to the end of the file
ril.sales_code=LOL
ro.csc.sales_code=LOL
Now reboot manually
add the apn settings widgit to the main screen and open it
click on menu and add an apn
Enter the apn settings for your carrier here. They're all different,(the carriers) but you can find them(the apn settings) easily with google, since they (carriers) all post their apn settings on their webpages.
Don't forget to save the apn settings.
Now select it.
Now reboot, since it couldn't hurt, right?
If you've done everything right you should now have an domestic and international unlocked Sprint galaxy s4. Enjoy.
I suppose you could now reflash the new modem back onto the phone, but I don't have firsthand knowledge whether this works or not- I've only read that others have said that it works. Remember, ONLY FLASH THE MODEM, the rest isn't necessary and will probably knox you all up
All I did was list these things- credit goes to all those who were linked in the above post. Thanks for all you do.

On stock 4.3 and higher you can go into settings and change your APN, so there's no reason to root and mess around with build.prop editor.

Every time i try this i cant get my wifi back up when i flash back to the nae modem. If i could get pass that then I'll definetly be do that.

can the modem be downgraded
mine came with mk2

leoiden said:
can the modem be downgraded
mine came with mk2
Click to expand...
Click to collapse
Yes, did like that on my L720 4.4.2 after unlocked with T-mobile i flashed 4.4.2 samsung s4 T-mobile odexed rom now the phone work like t-mobile s4 and full 4g signal, except the LTE data.

leoiden said:
can the modem be downgraded
mine came with mk2
Click to expand...
Click to collapse
tomy1986.nt said:
Yes, did like that on my L720 4.4.2 after unlocked with T-mobile i flashed 4.4.2 samsung s4 T-mobile odexed rom now the phone work like t-mobile s4 and full 4g signal, except the LTE data.
Click to expand...
Click to collapse
I have read that the modem itself cannot be downgraded. You can run older android versions and such on the newer modems, but the modem itself cannot be rolled back. I believe it has been like that since MJA.

You can downgrade modem, but can not downgrade bootloader (aboot)
Sent from my Phone using Tapatalk

I completed both the international & domestic unlock. I believe I was successful in each. I have a T-Mo sim card inserted but am not getting a mobile data connection. I do have 2 bars of service though. So I have gotten past the red X on the bars.
I am on 4.4.2 with the MDC modem. I did not do the build.prop stuff, instead opted to just access the APN's from the default menu.
A few things in my menu were different than the OP (probably because of 4.4) such as:
I dont have any roaming menu options
I dont have WCDMA.. just CDMA and LTE/CDMA. I currently have it set to LTE/CDMA
In my APN edit info there was not a place to put in MMS protocol: WAP 2.0
Also under About Device "my phone number" is wrong.
Am I missing something to get this t-mo working?

goblue30093 said:
I completed both the international & domestic unlock. I believe I was successful in each. I have a T-Mo sim card inserted but am not getting a mobile data connection. I do have 2 bars of service though. So I have gotten past the red X on the bars.
I am on 4.4.2 with the MDC modem. I did not do the build.prop stuff, instead opted to just access the APN's from the default menu.
A few things in my menu were different than the OP (probably because of 4.4) such as:
I dont have any roaming menu options
I dont have WCDMA.. just CDMA and LTE/CDMA. I currently have it set to LTE/CDMA
In my APN edit info there was not a place to put in MMS protocol: WAP 2.0
Also under About Device "my phone number" is wrong.
Am I missing something to get this t-mo working?
Click to expand...
Click to collapse
You didn't unlock it. If you were on NAE modem while unlocking then you failed miserably because you're not able to get into the most important part of the unlock...The service menu. If you did indeed downgrade the modem then you're going to need to follow the domestic unlock guide again. If it's showing CDMA/LTE you didn't do it right. It should show WCDMA only and WCDMA only isn't an option you can just select. It gets put there by the service menu.
Sent from my SPH-L720 using xda app-developers app

ecs87 said:
You didn't unlock it. If you were on NAE modem while unlocking then you failed miserably because you're not able to get into the most important part of the unlock...The service menu. If you did indeed downgrade the modem then you're going to need to follow the domestic unlock guide again. If it's showing CDMA/LTE you didn't do it right. It should show WCDMA only and WCDMA only isn't an option you can just select. It gets put there by the service menu.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
I said I wasn't on NAE, I am on MDC. I did get into the service menu. I did everything in the process without issues. My service menu did NOT have a WCDMA only option. It had LTE/WCDMA and that's what i chose. I just went to the t-mobile store and they verified my APN settings were correct. I am unsure of what to do at this point other than just start all over and do it again.
Anyone else?

goblue30093 said:
I said I wasn't on NAE, I am on MDC. I did get into the service menu. I did everything in the process without issues. My service menu did NOT have a WCDMA only option. It had LTE/WCDMA and that's what i chose. I just went to the t-mobile store and they verified my APN settings were correct. I am unsure of what to do at this point other than just start all over and do it again.
Anyone else?
Click to expand...
Click to collapse
I apologize. Long work day. Follow the guide. When it comes to where it says select LTE, GSM, and WCDMA all, ONLY select WCDMA all. At no point should you see your Sprint phone number in about phone. Also you should see IMEISV in about phone as well if you've successfully unlocked it. It'll help if you posted the steps you've gone through. Otherwise were just shooting in the dark.
Sent from my SPH-L720 using xda app-developers app

tmobile rom
jaywaka2713 said:
I have read that the modem itself cannot be downgraded. You can run older android versions and such on the newer modems, but the modem itself cannot be rolled back. I believe it has been like that since MJA.
Click to expand...
Click to collapse
hi can you tell me where I can download 4.4.2 samsung s4 T-mobile odexed rom for l720. thanks.

ecs87 said:
I apologize. Long work day. Follow the guide. When it comes to where it says select LTE, GSM, and WCDMA all, ONLY select WCDMA all. At no point should you see your Sprint phone number in about phone. Also you should see IMEISV in about phone as well if you've successfully unlocked it. It'll help if you posted the steps you've gone through. Otherwise were just shooting in the dark.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Imeisv visible, definitely unlocked as i can make calls texts and use edge data on redpocket mobile (att mvno)
But in phone number I still see my sprint number and I can't get hspa (picking the wcdma all gives me red x no bars, picking gsm all gives me full bars and edge data)

ecs87 said:
I apologize. Long work day. Follow the guide. When it comes to where it says select LTE, GSM, and WCDMA all, ONLY select WCDMA all. At no point should you see your Sprint phone number in about phone. Also you should see IMEISV in about phone as well if you've successfully unlocked it. It'll help if you posted the steps you've gone through. Otherwise were just shooting in the dark.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
From the S5 thread and now here we meet again in a revisit in time. Since I know you own and understand the L720 more than I do, could you please explain to me if this will work on a 4.4.2 NAE rom? I picked up an L720 (bad esn) for $100 and its in pretty great shape. Now I'm looking to unlock it but my experience with Samsung devices are very mild. It came on CM10.2 (4.3.1) and ive slowly caught up with things. So i understand that sadly there is no such thing as downgrading from KK to JB, I was trying to get it stock on JB with no cigar. Elsewhere I found out that you must flash something identical or above. So im planning on flashing an NAE 4.4.2 stock rom (custom recovery flashable) I found in order to attempt to unlock it cause I can't seem to find a 4.4.1 as mentioned in the OP. I flashed the MDC modem and it stuck, so with little knowledge I am assuming that it will stick once I flash this new rom? Correct me if I am going down the wrong path...
EDIT: Great nobody ever mentioned anywhere that the software used on the international unlock is for 64bit only...

Crossvxm said:
From the S5 thread and now here we meet again in a revisit in time. Since I know you own and understand the L720 more than I do, could you please explain to me if this will work on a 4.4.2 NAE rom? I picked up an L720 (bad esn) for $100 and its in pretty great shape. Now I'm looking to unlock it but my experience with Samsung devices are very mild. It came on CM10.2 (4.3.1) and ive slowly caught up with things. So i understand that sadly there is no such thing as downgrading from KK to JB, I was trying to get it stock on JB with no cigar. Elsewhere I found out that you must flash something identical or above. So im planning on flashing an NAE 4.4.2 stock rom (custom recovery flashable) I found in order to attempt to unlock it cause I can't seem to find a 4.4.1 as mentioned in the OP. I flashed the MDC modem and it stuck, so with little knowledge I am assuming that it will stick once I flash this new rom? Correct me if I am going down the wrong path...
EDIT: Great nobody ever mentioned anywhere that the software used on the international unlock is for 64bit only...
Click to expand...
Click to collapse
The software works on 32 bit too. Actually you can even perform the international unlock WITHOUT the tool if you know how to use QPST or DFS. Anyway...
Flash full NAE. Flash MDC modem. International unlock. Domestic unlock. Win.
Sent from my SPH-L720 using XDA Free mobile app

ecs87 said:
The software works on 32 bit too. Actually you can even perform the international unlock WITHOUT the tool if you know how to use QPST or DFS. Anyway...
Flash full NAE. Flash MDC modem. International unlock. Domestic unlock. Win.
Sent from my SPH-L720 using XDA Free mobile app
Click to expand...
Click to collapse
Must be an issue with my PC, nothing new...
And I know a thing or two about QPST. I still have it on my computer from a few days ago from when I was fixing a horribly corrupted IMEI on a G2 a friend of mine bought. I'm assuming I have to use a NAE stock tar with ODIN, because I tried a ROM of it and it lags and stays on black screens for seconds and WiFi doesn't work im sure because of the fact that the modem is older than the rom. Let's see if that works cause ive been trying to flash back to any stock ROM since I got this thing yesterday.

(Almost there...)
NEVER MIND. Got the international part working perfectly by using the Windows Vista partition on my PC. Now reading on, OP mentions that next the domestic unlock must be done, a link is provided there to another thread with domestic unlock instructions. Heres the question. The OP in the other thread mentions to hop onto 4.3 via odin. How can I get to 4.3 to domestic unlock if Odin doesnt let you downgrade?

Crossvxm said:
(Almost there...)
NEVER MIND. Got the international part working perfectly by using the Windows Vista partition on my PC. Now reading on, OP mentions that next the domestic unlock must be done, a link is provided there to another thread with domestic unlock instructions. Heres the question. The OP in the other thread mentions to hop onto 4.3 via odin. How can I get to 4.3 to domestic unlock if Odin doesnt let you downgrade?
Click to expand...
Click to collapse
Read the specifics. You cannot downgrade boot loaders but you CAN downgrade modems.
Unlock just requires MDC or MDL modem.

daniel4653 said:
Read the specifics. You cannot downgrade boot loaders but you CAN downgrade modems.
Unlock just requires MDC or MDL modem.
Click to expand...
Click to collapse
Yeah I remember that part but from what I was understanding, that's for the international. Domestic requires messing with some files and done. I already got the international part by tossing CM10.2 along with the MDC modem because stock Touch wiz would cause lag and reboots and non working wifi I'm assuming because of the mismatched combo. I DO know that obviously we need a TW rom in order to unlock domestic.
EDIT: I finally got the hint and got it to work. But I only get Edge instead of 3G. Does anyone know where I may be able to find that T-Mobile rom made for us? When I Google it I end up on the T-Mobile side.

Crossvxm said:
(Almost there...)
NEVER MIND. Got the international part working perfectly by using the Windows Vista partition on my PC. Now reading on, OP mentions that next the domestic unlock must be done, a link is provided there to another thread with domestic unlock instructions. Heres the question. The OP in the other thread mentions to hop onto 4.3 via odin. How can I get to 4.3 to domestic unlock if Odin doesnt let you downgrade?
Click to expand...
Click to collapse
I downgraded from latest bootloader on 4.4.2 or was it 4.4.4? Down to 4.3 which is the absolute best ROM version for service mode menu. It got me into service mode menu on first try by selecting menu back and input of 1. What I did was first install cf autoroot to root then cwm and used cwm to flash the 4.3 stock deodexed, I only used Odin for flashing modem. Odin gave me an error when flashing modem and phone got stuck in kies mode but i got it to get unstuck by just flashing cf auto root again to make the kies mode error thingy think odin flash has went well. Turns out MDC modem flashed despite odin error.
Anyways. While on 4.3 and MDC modem I noticed no WiFi but I had sound. I followed the international and domestic unlock instructions and WiFi was still broke when I got back to 4.4.2 but I had unlock and sim card working and got bars. I am on aosp 4.4.4 now and the nae modem I finally flashed works well with this ROM but soon I gotta go to touchwhiz 4.4.4. If I go to 4.4.4 touch whiz WiFi and all else will work fine just as they do on slim aosp . 4.4.2 touchwhiz is still not giving me wifi on NAE modem. Update NAE 4.4.2 stock deodexed rooted rom i got from xda android thread did the trick and all works well now. All is perfectly working after i flashed it in cwm.
For aosp lovers. aosp requires additional things to do so aosp dialer can make and receive calls fine. I can call but there are issues until I follow another guide on xda that resolves those issues on aosp ROMs using sprint s4.
http://forum.xda-developers.com/showthread.php?t=2539794
If you see system slow, no wifi, no audio and lockscreen being nearly impossible to unlock, its due to you being on a higher ROM than the modem was meant for.

[GUIDE] [fixed] SIM UNLOCK after lollipop

this thread is just for lollipop 5.x m7wls (sprint) based on sense roms
no need to S-OFF
if you are on kitkat or less here or here if you are on the stock ODEX rom
1 - you need just to unlock bootloader from htcdev.com
2 - TWRP or any other here is the TWRP for m7wls(sprint)
3 - flash SuperSU
4 - its time to flash HtcOMADM_SPCS
5 - install sim unlock helper.apk
6 - Insert your SIM card, you may see this massage No Network Found
Code:
Select "YES" to switch to global mode
Select "NO" to stay in the current mode
but do not worry since your phone dose not say invalid sim card . so now go to setting , mobile data . and chose GSM/UMTS only. tell now you wont see any signal , just scroll down to Available GSM netowrks ,then Search networks you will see a list of networks and only one that is available, chose it .
now if you want to stop the annoying vDM crash massage flash the stock-HtcOMADM_SPCS .
Its better to relock your bootloader and flash the RUU rom so every thing works well and you wont see the No Network massage again .
That's it ^_*

it really works but, it didn´t solve my problem i guess my problem is not sim unlock i can not have signal for gsm it stuck in CDMA but in *#*#4636#*#* it shows up like radio turned off i want to turning on but i can not,:crying:
anyway thanks:good::good:

I've tried your guide and elvisypi's guide, but neither work. I'm using a rooted M7, lollipop, stock ROM.
When using the SIM Unlock Helper app, I get "OS Check Fail! You aren't running HTC Sense!", but if I hit the back button I end up at a screen that states "Device verified, root available, sense rom (yes)". Hitting Start does open up the menu, but never before a vDM client crash. After hitting Sim Unlock and it hanging for a few seconds, the log is empty after hitting back to return to the unlock helper. The screen says "Log empty, did you run the program first?"
It seems to me that "vDM" is what is supposed to be doing the work, and it's crashing so it can't...

when OS Check Fail! appears to you press Display SIM Unlock Log then go back and press start and scroll down to sim lock
if that menu did not appear to you try flashing this instead
http://www.mediafire.com/download/9fql3kczdn7mb73/NEW+HtcOMADM_SPCS_2.zip

AnthonyCool said:
it really works but, it didn´t solve my problem i guess my problem is not sim unlock i can not have signal for gsm it stuck in CDMA but in *#*#4636#*#* it shows up like radio turned off i want to turning on but i can not,:crying:
anyway thanks:good::good:
Click to expand...
Click to collapse
check it from the settings / Mobile data / Network mode
i think

flyboy21141 said:
I've tried your guide and elvisypi's guide, but neither work. I'm using a rooted M7, lollipop, stock ROM.
When using the SIM Unlock Helper app, I get "OS Check Fail! You aren't running HTC Sense!", but if I hit the back button I end up at a screen that states "Device verified, root available, sense rom (yes)". Hitting Start does open up the menu, but never before a vDM client crash. After hitting Sim Unlock and it hanging for a few seconds, the log is empty after hitting back to return to the unlock helper. The screen says "Log empty, did you run the program first?"
It seems to me that "vDM" is what is supposed to be doing the work, and it's crashing so it can't...
Click to expand...
Click to collapse
when OS Check Fail! appears to you press Display SIM Unlock Log then go back and press start and scroll down to sim lock
if that menu did not appear to you try flashing this instead
http://www.mediafire.com/download/9fql3kczdn7mb73/NEW+HtcOMADM_SPCS_2.zip

Not unlocking
Hi I am have bootloader unlocked, intalled TWRP, and rooted. Tried with Stock Sprint Lollipop ROM and menu would not pop up. Flashed to Viperone 8.0 and I am able to bring up the menu. Once Sim Lock unhighlights I hit the back button and get the SIM unlocked successful message. The reboot in that screen does not work for me so have to hold power button down and reboot. I have changed settings to GSM and WCMDA preferred. Next pop in an ATT SIM and a Cricket but still get invalid SIM. Any ideas? Also, I am S-On as I have been unable to off with HBoot 1.61

Hi, I bought a Sprint HTC One M7 (running 5.0.2) from someone figuring that I'd be able to unlock for use on Verizon (because every phone can be unlocked...... right? ). I first unlocked the bootloader with HTCDev, ok good. Then I ordered a SIM unlock code off the interwebs thinking that I could just go get a Verizon SIM from them and then enter the code when prompted. Took the phone to Verizon and they couldn't help, said that IMEI was not valid and they couldn't give me a new SIM because the current phone I have (Incredible 2) isn't eligible for a SIM only upgrade, then they said I should just purchase an upgrade with the EDGE plan (yeah right). I then used the SIM card of a friend who has an M7 on Verizon hoping that I'd be prompted for the SIM unlock code then, but I only got "invalid SIM......"
So, I stumbled upon this thread and followed the procedure to flash TWRP, then SuperSU, confirmed that I'm rooted, and then flashed HtcOMADM_SPCS_2.zip, and ran SIM unlock helper. I got the same error as the other guy "OS Check Fail" and vDM client crashed, but then I press back and go through the SIM lock part and reboot. So now I can put my friend's Verizon SIM in and I get no SIM error, but I am still not prompted to input the unlock code for my IMEI. Any Ideas, or is it not even possible to use a Sprint M7 on Verizon?
EDIT: I am now S-off with sunshine (hboot 1.61)
EDIT 2: Ok, now I'm getting to a point where I put my friend's SIM in and it prompts "preparing SIM", "SIM card inserted, tap to complete setup". Once I tap the notification, I get taken to a screen that says select your carrier. It takes a little while to load the carriers but Verizon appears, but after I select verizon, the page disappears and nothing further happens. It then repeats the loop from "preparing SIM".
EDIT 3: From TWRP I wiped all data including the OS. Then I got stuck at the splash screen, reflashed [STOCK ROM] [5.0.2] [SENSE 6] Sprint 6.16.651.2 rooted from phonegeekjr (PhoeniROM ?)

tlwash123 said:
Hi, I bought a Sprint HTC One M7 (running 5.0.2) from someone figuring that I'd be able to unlock for use on Verizon (because every phone can be unlocked...... right? ). I first unlocked the bootloader with HTCDev, ok good. Then I ordered a SIM unlock code off the interwebs thinking that I could just go get a Verizon SIM from them and then enter the code when prompted. Took the phone to Verizon and they couldn't help, said that IMEI was not valid and they couldn't give me a new SIM because the current phone I have (Incredible 2) isn't eligible for a SIM only upgrade, then they said I should just purchase an upgrade with the EDGE plan (yeah right). I then used the SIM card of a friend who has an M7 on Verizon hoping that I'd be prompted for the SIM unlock code then, but I only got "invalid SIM......"
So, I stumbled upon this thread and followed the procedure to flash TWRP, then SuperSU, confirmed that I'm rooted, and then flashed HtcOMADM_SPCS_2.zip, and ran SIM unlock helper. I got the same error as the other guy "OS Check Fail" and vDM client crashed, but then I press back and go through the SIM lock part and reboot. So now I can put my friend's Verizon SIM in and I get no SIM error, but I am still not prompted to input the unlock code for my IMEI. Any Ideas, or is it not even possible to use a Sprint M7 on Verizon?
EDIT: I am now S-off with sunshine (hboot 1.61)
EDIT 2: Ok, now I'm getting to a point where I put my friend's SIM in and it prompts "preparing SIM", "SIM card inserted, tap to complete setup". Once I tap the notification, I get taken to a screen that says select your carrier. It takes a little while to load the carriers but Verizon appears, but after I select verizon, the page disappears and nothing further happens. It then repeats the loop from "preparing SIM".
EDIT 3: From TWRP I wiped all data including the OS. Then I got stuck at the splash screen, reflashed [STOCK ROM] [5.0.2] [SENSE 6] Sprint 6.16.651.2 rooted from phonegeekjr (PhoeniROM ?)
Click to expand...
Click to collapse
I think You need to change the CDMA via DFS so it can be recognized by SIM card
Why
Sprint always use the CDMA as PRL that you can write it via DFS while Verizon use this type of network as a SIM card so that after using sim unlock helper your phone dose not say "invalid SIM" but it didnt show the network signal

As far as I know, the Sprint and Verizon M7s have custom radios operating at their carrier frequencies. Sprint's frequency band is not the same as Verizon's, and even after unlocking, the radio can only scan within its band. Your radio simply can't see Verizon's tower. It seems like your process completely worked, though.
I haven't gotten the chance to try again, but I am planning to eventually.
Also, it is possible to S-OFF through any other method than Sunshine? It'd be nice not to have to pay for that... Is S-OFF absolutely required to SIM unlock/ flash custom roms/ change files at the root level?

This does NOT work...
I think it is pretty obvious that THIS METHOD DOES NOT WORK...
I basically ran the latest RUU - Sprint Stock ROM which put my phone to Lollipop 5.0.2 - Sense 6.0, HBOOT 1.61, S-ON
I unlocked bootloader with HTC DEV, installed the latest TWRP, and rooted the phone, so it is all LATEST and GREATEST as of this post date...
I ran BOTH of the HtcOMADM_SPCS_2 files - both OLD and NEW - and neither one works. NEW is actually worse because the vDM client crashes each time you even try to launch the SIM UNLOCK HELPER app.
With the OLD file you can get to the menu and you can click on SIM LOCK, but nothing gets written to the log before or after reboot, plus when you go to *#*#4636#*#* you can select the connection type, since it is set to CDMA but every time I change it to - GSM only - it will reset to CDMA only when I go back in. So the change refuses to save and I keep getting that prompt saying:
No Network Found
Select "YES" to switch to global mode
Select "NO" to stay in the current mode
So it seems to want to force you back to CDMA mode.
If we are supposed to be running a CUSTOM ROM then please say so, but I am testing with the STOCK ROM and it seems others are NOT having any luck.
So if someone has it working then just let us know WHICH ROM you are using and which files you are using, because it sounds like we are being asked to QA the hack...
Moving on to another solution now...
:crying:
P.S.
Why is someone posting about a VERIZON phone in the Sprint section, kick them out because they add to the confusion...

Wow! OP was edited with a fix 4 hours after I'd figured it out myself. Just made an account to clarify that you need to downgrade the radio if it's too new. I had a lot of trouble trying to unlock it before figuring that out (and I went through an entire series of downgrading and flashing multiple ROMs until I found it out). Here's a guide I made that worked for me.
Have an unlocked bootloader first with HTCDev like said in OP. There's no need to have S-OFF or downgrade anything except radio.
1. Install TWRP.
2. Flash a lollipop ROM (I used Viper 8.0.0) using TWRP. (You can probably skip steps 2 and 3 if you're already on lollipop.)
3. Once booted, go through first time set up.
4. Restart into TWRP and install SuperSU.
5. Reboot and flash the radio (1.00.20.0315_1.29.651.7.zip from elvisypi's thread) and then flash HtcOMADM_SPCS.zip (I used the 4.3 version from chas123) using TWRP.
7. Reboot into System and install the com.viper.simunlockhelperfree.apk (Below; couldn't find where I got it from) then go to display log, press back, press start, then scroll down and press simlock. You could probably also do this using the Terminal method.
8. Wait a few seconds until it unfreezes and reboot.
9. Once rebooted, plug in your sim and go to the phone dial and put in *#*#4636#*#*. Go to Phone Information and set the network to WDCMA preferred. (It might spam you with "No Network Found," so just check do not show again and press No to switching to global mode.)
10. Exit out and open Settings then go to Mobile data and make sure the Network mode is set to GSM/UMTS Only. Scroll down and go to Access point names. (Found steps 10-13 from savage25rcracer while searching through the forums.)
11. In the APNs, choose your carrier and press back.
12. Go to Available GSM networks and press Search Networks.
13. Wait until it finishes and select your carrier.
14. Now you should have service and you are now unlocked on lollipop.
One problem I have is that when data is turned off, it never connects back to data when turned back on and I have to repeat steps 9-13. Any help with that would be appreciated. I did this method with HBoot 1.61 and S-ON and I am using a T-Mobile Sim. Hopefully this works for you guys!
EDIT:
Turns out that switching it to GSM Auto (PRL) made it automatically reconnect for turning data on and off, but data doesn't work after reboot until I repeat step 12.

Check my older post I have a fix for the in an out signal and it reconnects automatically... Thank me later. Spread the word... It's well worth it. I use it.
Sent from my HTC One using XDA Free mobile app

i tried with STOCK & Viper ... not working
with Stock SIMunlockhelper didnt give me MENU after i hit START
with viper it takes about 2 mins freezing when i hit SIMLOCK... then still nohting after reboot Network operator DIMED & alot of times it give me ERROR (vDM Client isn't responding)
NOTE : on lock screen it says (Invalid Card)

It doesn't say invalid sim,i selected ATT from the list of the carriers,i selected GSM/UMTS under mobile settings but my Network Operators Menu is grey and i can't select ATT there.Any ideas.

REVISTED - Did this work?!
Fayr said:
Wow! OP was edited with a fix 4 hours after I'd figured it out myself. Just made an account to clarify that you need to downgrade the radio if it's too new. I had a lot of trouble trying to unlock it before figuring that out (and I went through an entire series of downgrading and flashing multiple ROMs until I found it out). Here's a guide I made that worked for me.
Have an unlocked bootloader first with HTCDev like said in OP. There's no need to have S-OFF or downgrade anything except radio.
1. Install TWRP.
2. Flash a lollipop ROM (I used Viper 8.0.0) using TWRP. (You can probably skip steps 2 and 3 if you're already on lollipop.)
3. Once booted, go through first time set up.
4. Restart into TWRP and install SuperSU.
5. Reboot and flash the radio (1.00.20.0315_1.29.651.7.zip from elvisypi's thread) and then flash HtcOMADM_SPCS.zip (I used the 4.3 version from chas123) using TWRP.
7. Reboot into System and install the com.viper.simunlockhelperfree.apk (Below; couldn't find where I got it from) then go to display log, press back, press start, then scroll down and press simlock. You could probably also do this using the Terminal method.
8. Wait a few seconds until it unfreezes and reboot.
9. Once rebooted, plug in your sim and go to the phone dial and put in *#*#4636#*#*. Go to Phone Information and set the network to WDCMA preferred. (It might spam you with "No Network Found," so just check do not show again and press No to switching to global mode.)
10. Exit out and open Settings then go to Mobile data and make sure the Network mode is set to GSM/UMTS Only. Scroll down and go to Access point names. (Found steps 10-13 from savage25rcracer while searching through the forums.)
11. In the APNs, choose your carrier and press back.
12. Go to Available GSM networks and press Search Networks.
13. Wait until it finishes and select your carrier.
14. Now you should have service and you are now unlocked on lollipop.
Click to expand...
Click to collapse
Well, it seems this is the ONLY SOLUTION that worked for me, because I tried the Bad Boyz custom ROM that some others have suggested but it does NOT seem to work and there are "bugs" like the status\notification bar disappearing when you start to mess with the ROM. I flashed the Viper 8.0.0 ROM with TWRP and everything loaded properly except for one little "bug", which is this constant non-stop blinking NFC icon in the status bar so I might have to find another ROM. I wish I did not upgrade, so if you have ANY HBOOT under 1.61 - DO NOT UPGRADE WITH OFFICIAL ROM - because once you have 1.61 then you cannot S-OFF although you can downgrade the radio with S-ON and it is just a matter of unlocking the bootloader.
2 Notes:
1. Make sure you install SuperSU and do not rely on the Viper version, so let it uninstall any other SuperSU after installing from the Play Store. I believe the SuperSU installation will fail for you if you install through TWRP, but ViperROM should be rooted and instead install SuperSU from the Play Store if TWRP installation fails.
2. When you run "SIM UNLOCK helper" it WILL FAIL the first time, because you need to have SuperSU give it permission so make sure you go to the LOG in the options. Afterwards, make sure you close everything and remove from latest apps list. Then run again, when it fails then open LOG then hit BACK and now it will show you that you PASSED THE TEST. Then START then scroll down to SIM LOCK and wait like a minute or more because it took a LONG TIME for mine to un-freeze but then I hit REBOOT once it came back which is right there in the same list. If you doubt it, then reboot and do again but I was able to get it to work and then when I changed options in 4636 it would look for my SIM and did not give me any errors.
Anyway, I was able to follow all the steps here and the key seems to be downgrading the radio, because nothing seemed to work until I downgraded the radio version and then I tested it with both an AT&T and T-Mobile chip that I have lying around. The T-Mobile chips seem to work with no problems as others have noted, so you are able to make changes, register on the network, and set it up but I had problems with AT&T although I got farther than with any other modification. The AT&T chip will let you select the AT&T network, but you will not be able to scan for networks and you get NO BARS although it seems to be connecting or doing something although I suspect AT&T or something in the software is blocking you from connecting 100%.
So I cannot say 100% this SIM UNLOCK worked, but at least I was able to get to options that I could not get to before and I tried BOTH chips and only the T-Mobile chip seemed to work without any problems, so I suspect what others have reported is true and the Sprint HTC ONE M7 seems to be giving you problems with DOMESTIC US Carriers. I will be able to make a DEFINITIVE test in 2 months, because I am going to Peru and I might as well take this phone with me so I will test the Sprint HTC One M7 with both Claro and Telefonica SIMs down there. I will even try to update to the LATEST Sprint Official ROM to see if the unlock stays and if I am able to get GSM to work with overseas SIMs then the SIM UNLOCK worked, but you might as well not bother using it in the United States, so hopefully this will help others once I post an update after July and this will end up my "overseas" battle phone unless I pawn it off over there.
See you then...
:good:

DonChino said:
I flashed the Viper 8.0.0 ROM with TWRP and everything loaded properly except for one little "bug", which is this constant non-stop blinking NFC icon in the status bar so I might have to find another ROM.
Click to expand...
Click to collapse
Not to derail the thread, but I think there is a fix in HUB - Addons.
http://forum.xda-developers.com/showthread.php?p=59839813&highlight=nfc#post59839813

DonChino said:
Well, it seems this is the ONLY SOLUTION that worked for me
Anyway, I was able to follow all the steps here and the key seems to be downgrading the radio, because nothing seemed to work until I downgraded the radio version and then I tested it with both an AT&T and T-Mobile chip that I have lying around. The T-Mobile chips seem to work with no problems as others have noted, so you are able to make changes, register on the network, and set it up but I had problems with AT&T although I got farther than with any other modification. The AT&T chip will let you select the AT&T network, but you will not be able to scan for networks and you get NO BARS although it seems to be connecting or doing something although I suspect AT&T or something in the software is blocking you from connecting 100%.
So I cannot say 100% this SIM UNLOCK worked, but at least I was able to get to options that I could not get to before and I tried BOTH chips and only the T-Mobile chip seemed to work without any problems, so I suspect what others have reported is true and the Sprint HTC ONE M7 seems to be giving you problems with DOMESTIC US Carriers. I will be able to make a DEFINITIVE test in 2 months, because I am going to Peru and I might as well take this phone with me so I will test the Sprint HTC One M7 with both Claro and Telefonica SIMs down there. I will even try to update to the LATEST Sprint Official ROM to see if the unlock stays and if I am able to get GSM to work with overseas SIMs then the SIM UNLOCK worked, but you might as well not bother using it in the United States, so hopefully this will help others once I post an update after July and this will end up my "overseas" battle phone unless I pawn it off over there.
See you then...
:good:
Click to expand...
Click to collapse
Yep.that's exactly what i've got-i did radio downgrade and was able to run SIM unlock app,but i can't get ANY signal from ATT and my GSM network selection menu is greydout. Any ideas how i can make it work?Suggestion from OP?

i tried both methods ... same results (Not Working)
WLS Hboot 1.61.0000 with stock Lollipop all steps DONE but it says on lock screen INVALID SIM & SIM UNLOCK HELPER didnt show menu after hit start
on viper 8.0 also it says INVALID SIM on lock screen .. when i hit start its show MENU then i hit SIM LOCK it freez about 2 mins then it give me error (VDM isnt responding).. so i tried to flash HtcOMADM_SPCS.zip again then tried to flash Stock-HtcOMADM_SPCS.zip ... the same
what should i do ????

justrelax said:
i tried both methods ... same results (Not Working)
WLS Hboot 1.61.0000 with stock Lollipop all steps DONE but it says on lock screen INVALID SIM & SIM UNLOCK HELPER didnt show menu after hit start
on viper 8.0 also it says INVALID SIM on lock screen .. when i hit start its show MENU then i hit SIM LOCK it freez about 2 mins then it give me error (VDM isnt responding).. so i tried to flash HtcOMADM_SPCS.zip again then tried to flash Stock-HtcOMADM_SPCS.zip ... the same
what should i do ????
Click to expand...
Click to collapse
Downgrade the radio,flash HtcOMADM_SPCS.zip,try unlock app.

[INFO][HOW TO] Sprint Galaxy S4 Sim Unlock (SPH-L720/jfltespr) ATT/TMOBILE

There seems to be some confusion on the matter here in the forums.
Can I sim unlock my Sprint Galaxy S4 to use ATT/TMobile sims?
Yes
Can I do it using a Lollipop Rom?
Yes
Can I do it once I flash a KNOX bootloader?
Yes
Can I do it on OD2?
I don't think so, but maybe... The best bet is to use NG2 and then experiment from there...
Can I do it without reading/paying attention/following directions?
No.. but if you made it here, you're doing OK so far...
First off, there are 2 kinds of SIM unlock for the SPH-L720. International unlock, and domestic unlock. We will cover both.
To unlock for international carriers SIMs, you have a couple of options.
a. Have sprint unlock it for you
b. Do it yourself.
I prefer b, almost always.
Lets start off with what you'll need:
Drivers for the phone, I'm too lazy to find those, but if you can't, you are way out of your depth here.
SSU.apk from here.
An NG2 Stock Rom (modem and ROM) here is an Odin tar that i used when I did it.
Odin from the same post that tar came from... (here)
TWRP recovery in tar format from here (i used 2.8.4.0, but I don't think that matters)
adb ( i use this minimal adb installer but any adb install will work.)
THIS WILL PROBABLY WIPE ALL YOUR DATA.
Put your phone in Download mode (Power + Vol Down)
Open Odin
Click the PDA button, choose the tar.md5 file you're flashing. (the stock ROM from earlier)
Uncheck Auto Reboot
Plug in a decent USB cable, from the phone to the PC
Hit start
It will take a few minutes, no worries unless you get an error.
When it is done, Hold Power + Vol Down until the phone reboots into download mode again
Click PDA in Odin and load the TWRP tar you downloaded earlier.
Hit start. This will take significantly less time.
When it is finished, Hold Power + Vol Up to reboot into recovery.
When TWRP is fully loaded, click reboot then reboot system.
It will tell you that the ROM is not rooted, and ask if you want to do that. (if you used the tar from above) and of course we want to, so let it.
Let the phone fully boot up.
Goto Settings, More, About Phone.
Find the line that says Build Number, click that line a bunch of times until it says "You are now a developer".
Now hit back, and goto Developer Settings.
Find Debugging mode and enable it.
Using adb
Code:
adb devices
that will respond with whether it finds your device or not.
Code:
adb install /path/to/SSU.apk
that will install SSU.apk from earlier..
You'll want to have the screen of your phone on for this part because you will need to approve your PC to connect.
Goto your app drawer, and run SSU
Click the Unlock button
Now your phone is SIM unlocked for international carriers... But what if you want domestic carriers too?
Unlocking for Domestic Carriers
First things first, you have to do the International Unlock explained above (you didnt think you were gonna get out of that did you?)
After that, load ADB back up
Code:
adb shell
Code:
su
am broadcast -a android.provider.Telephony.SECRET_CODE -d android_secret_code://27663368378
That will pop up a menu on your phone
Click (UMTS) then (DEBUG SCREEN) then (PHONE CONTROL) then (NETWORK CONTROL) then (GCF) then the top option.
Now reboot.
You are now unlocked Internationally and Domestically. Goto your mobile network settings and put your apn settings in (if they arent already there off the sim) and you should have data too.
From here you have a couple of choices.
a. Stay on NG2
b. Goto another ROM (i usually just flash CM at this point, YMMV)
c. experiment yourself and try to use OD2 (I've heard flashing the OD2 modem relocks it, didnt try because I didn't want OD2)
If you stay on NG2 then I suggest this apk to Stop the Sprint Hands Free Activation from nagging the **** out of you..
NOTE: as of tonight, any CM12.1 nightly after 6/23 causes a No Sim card error. This has nothing to do with the unlock, its just messed up, so until its fixed use the 6/23 nightly.
Hopefully that answers some of the questions I keep getting in PMs and what not.. If you have any question, feel free to ask.
I might not answer them, because I rarely frequent the forums anymore, but lots of people here can probably answer the questions you have.
Thanks to @autoprime he's the one that found the original unlock for this phone, and tons of others.
Thanks to @random45 for posting the ROM i used
Thanks to @shimp208 for posting (making?) the minimal adb install that i use
Thanks to @Sloosh for making the Hands free activation disabler apk
Thanks to @Dees_Troy for TWRP and just being cool in general
Thanks to @aalyatim for the SSU.apk
Thanks to cyanogen and Team CyanogenMOD for all they do..
Thanks to @imaxuout for keeping this topic alive in a few threads
Thanks to @AndroidKing for a similar thread.
Thanks to nicotheandroidguy also.
And anyone else I forgot (I'm sure I did)

I would probably recommend removing all references to rooting since it's not necessary. Some may only want to unlock, not root.
Substitute the dialer code for the terminal command when it comes to launching the service menu.
And putting the apk on the phone's storage and installing it with a file explorer is probably easier than adb install, for most people.

iBowToAndroid said:
I would probably recommend removing all references to rooting since it's not necessary. Some may only want to unlock, not root.
Substitute the dialer code for the terminal command when it comes to launching the service menu.
And putting the apk on the phone's storage and installing it with a file explorer is probably easier than adb install, for most people.
Click to expand...
Click to collapse
I just documented what I did. there is no one way to do it. you are more than welcome to document them in your post if you want.

I'm going to try this today and will report back. I switched to tmobile and got the s6 edge and since my sprint contract was up I was able to keep my device. Now I want to get it to my mom who has a beat down metro pcs device. In theory since metro is tmobile it should work right?
Sent from my SPH-L720 using Tapatalk

robogoflow said:
I'm going to try this today and will report back. I switched to tmobile and got the s6 edge and since my sprint contract was up I was able to keep my device. Now I want to get it to my mom who has a beat down metro pcs device. In theory since metro is tmobile it should work right?
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
If metropcs uses sim cards, and the Bands that the GS4 has, then yes it should work. You'll obviously need APN settings for data.

So this method you need to be on KitKat in order for Suu to work. I also can't get a hold of galaxytools as the developer wants you to buy it now.
Also any ideas how to do the domestic unlock without adb?
Sent from my SPH-L720 using Tapatalk

I don't use galaxy tools, and if you aren't on kit Kat yet, you can revert the modem and use the original unlock posted by autoprime.. Or you could just flash the rom I linked too, which is lollipop, not the newest but works fine.

And as far as adb, you can just use a terminal app.. Except for installing ssu.apk, but you could just push that to your phone and install it with a file manager

I followed the above steps and still can't get it to work. Im back on kitkat and unlocked the sim. Did the terminal command and followed those steps. rebooted and under About Phone> Status it still says sprint and shows my old phone number that was tied to my sprint account. Am i missing something? I went to settings and changed to gsm/utms and tried that but nothing.

Did you put a sim card in?

Yes it was a metro pcs sim. I spent a couple hours tinkering with different steps from older threads and still could not figure it out.

Metro is unique in that you can't switch phones just by popping a SIM in.
You have to contact them and have them register the new IMEI to the phone number

chris41g said:
There seems to be some confusion on the matter here in the forums.
Can I sim unlock my Sprint Galaxy S4 to use ATT/TMobile sims?
Yes
Can I do it using a Lollipop Rom?
Yes
Can I do it once I flash a KNOX bootloader?
Yes
Can I do it on OD2?
I don't think so, but maybe... The best bet is to use NG2 and then experiment from there...
Can I do it without reading/paying attention/following directions?
No.. but if you made it here, you're doing OK so far...
First off, there are 2 kinds of SIM unlock for the SPH-L720. International unlock, and domestic unlock. We will cover both.
To unlock for international carriers SIMs, you have a couple of options.
a. Have sprint unlock it for you
b. Do it yourself.
I prefer b, almost always.
Lets start off with what you'll need:
Drivers for the phone, I'm too lazy to find those, but if you can't, you are way out of your depth here.
SSU.apk from here.
An NG2 Stock Rom (modem and ROM) here is an Odin tar that i used when I did it.
Odin from the same post that tar came from... (here)
TWRP recovery in tar format from here (i used 2.8.4.0, but I don't think that matters)
adb ( i use this minimal adb installer but any adb install will work.)
THIS WILL PROBABLY WIPE ALL YOUR DATA.
Put your phone in Download mode (Power + Vol Down)
Open Odin
Click the PDA button, choose the tar.md5 file you're flashing. (the stock ROM from earlier)
Uncheck Auto Reboot
Plug in a decent USB cable, from the phone to the PC
Hit start
It will take a few minutes, no worries unless you get an error.
When it is done, Hold Power + Vol Down until the phone reboots into download mode again
Click PDA in Odin and load the TWRP tar you downloaded earlier.
Hit start. This will take significantly less time.
When it is finished, Hold Power + Vol Up to reboot into recovery.
When TWRP is fully loaded, click reboot then reboot system.
It will tell you that the ROM is not rooted, and ask if you want to do that. (if you used the tar from above) and of course we want to, so let it.
Let the phone fully boot up.
Goto Settings, More, About Phone.
Find the line that says Build Number, click that line a bunch of times until it says "You are now a developer".
Now hit back, and goto Developer Settings.
Find Debugging mode and enable it.
Using adb
Code:
adb devices
that will respond with whether it finds your device or not.
Code:
adb install /path/to/SSU.apk
that will install SSU.apk from earlier..
You'll want to have the screen of your phone on for this part because you will need to approve your PC to connect.
Goto your app drawer, and run SSU
Click the Unlock button
Now your phone is SIM unlocked for international carriers... But what if you want domestic carriers too?
Unlocking for Domestic Carriers
First things first, you have to do the International Unlock explained above (you didnt think you were gonna get out of that did you?)
After that, load ADB back up
Code:
adb shell
Code:
su
am broadcast -a android.provider.Telephony.SECRET_CODE -d android_secret_code://27663368378
That will pop up a menu on your phone
Click (UMTS) then (DEBUG SCREEN) then (PHONE CONTROL) then (NETWORK CONTROL) then (GCF) then the top option.
Now reboot.
You are now unlocked Internationally and Domestically. Goto your mobile network settings and put your apn settings in (if they arent already there off the sim) and you should have data too.
From here you have a couple of choices.
a. Stay on NG2
b. Goto another ROM (i usually just flash CM at this point, YMMV)
c. experiment yourself and try to use OD2 (I've heard flashing the OD2 modem relocks it, didnt try because I didn't want OD2)
If you stay on NG2 then I suggest this apk to Stop the Sprint Hands Free Activation from nagging the **** out of you..
NOTE: as of tonight, any CM12.1 nightly after 6/23 causes a No Sim card error. This has nothing to do with the unlock, its just messed up, so until its fixed use the 6/23 nightly.
Hopefully that answers some of the questions I keep getting in PMs and what not.. If you have any question, feel free to ask.
I might not answer them, because I rarely frequent the forums anymore, but lots of people here can probably answer the questions you have.
Thanks to @autoprime he's the one that found the original unlock for this phone, and tons of others.
Thanks to @random45 for posting the ROM i used
Thanks to @shimp208 for posting (making?) the minimal adb install that i use
Thanks to @Sloosh for making the Hands free activation disabler apk
Thanks to @Dees_Troy for TWRP and just being cool in general
Thanks to @aalyatim for the SSU.apk
Thanks to cyanogen and Team CyanogenMOD for all they do..
Thanks to @imaxuout for keeping this topic alive in a few threads
Thanks to @AndroidKing for a similar thread.
And anyone else I forgot (I'm sure I did)
Click to expand...
Click to collapse
Hey can I get my credit for the domestic unlock? Also Thanks for making the process clearer for other. http://forum.xda-developers.com/showthread.php?p=47540386
Sent from my XT1080 using Tapatalk

How are Data speeds?
This is great thank you for posting this detailed one. If i can't figure out how to get my phone working right I'll flash stock firmware and start OP's process. Can you tell me what data speeds are you getting? I've got mine unlocked and working by changing my modem and using s4 flasher among changing other settings. It's a Sprint S4 L720 going to Tmobile. I'm only getting Edge speeds of .08 mbps and the voice is sometimes garbled. I'm not sure how I can get it unlocked and working well with everything working and getting the HSPA+ speeds. I live in a 4gLTE area so I should get at least 3g speed according to tmobile's coverage map using 72703 zip code. Trying to figure this out if anyone has suggestions on how to get out of EDGE speeds, the 2G EDGE capabilities are appalling. I haven't flashed any custom ROMS btw.
Phone Info
Software: L720VPUAMDC
Hardware: L720.08
Android:4.4.2
Baseband: L720VPUAMDC
APN Settings
Name: Tmobile us
APN: fast.tmobile.com
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMSC: http:mms.msg.eng.t-mobile/mms/wapenc
Multimedia message proxy: not set
Multimedia message port: not set
MCC: 310
MNC:260
Authentication type: not set
APN type: not set
APN protocol: IPv4
APN roaming protocol: IPv4

Mychocolatestarfish said:
This is great thank you for posting this detailed one. If i can't figure out how to get my phone working right I'll flash stock firmware and start OP's process. Can you tell me what data speeds are you getting? I've got mine unlocked and working by changing my modem and using s4 flasher among changing other things. It's a Sprint S4 L720 going to Tmobile. I'm only getting Edge speeds of .08 mbps and the voice is sometimes. I'm not sure how I can get it unlocked and working well with everything working and getting the HSPA+ speeds. I live in a 4gLTE area so I should get at least 3g speed according to tmobile's coverage map using 72703 zip code. Trying to figure this out if anyone has suggestions on how to get out of EDGE speeds, the 2G EDGE capabilities are appalling. I haven't flashed any custom ROMS btw.
Phone Info
Software: L720VPUAMDC
Hardware: L720.08
Android:4.4.2
Baseband: L720VPUAMDC
APN Settings
Name: Tmobile us
APN: fast.tmobile.com
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMSC: http:mms.msg.eng.t-mobile/mms/wapenc
Multimedia message proxy: not set
Multimedia message port: not set
MCC: 310
MNC:260
Authentication type: not set
APN type: not set
APN protocol: IPv4
APN roaming protocol: IPv4
Click to expand...
Click to collapse
I only used it on att, but if your speeds are low then TMobile in your area probably operates on a frequency the s4 doesn't use.. Or your apn is wrong, idk which.

nicotheandroidguy said:
Hey can I get my credit for the domestic unlock? Also Thanks for making the process clearer for other. http://forum.xda-developers.com/showthread.php?p=47540386
Sent from my XT1080 using Tapatalk
Click to expand...
Click to collapse
I didn't know you had anything to do with it, me an auto got my s4 unlocked on irc before that post, even before his original international unlock post. Maybe you told him how and he just didn't inform me.
http://forum.xda-developers.com/showthread.php?p=45893621

Mychocolatestarfish said:
This is great thank you for posting this detailed one. If i can't figure out how to get my phone working right I'll flash stock firmware and start OP's process. Can you tell me what data speeds are you getting? I've got mine unlocked and working by changing my modem and using s4 flasher among changing other settings. It's a Sprint S4 L720 going to Tmobile. I'm only getting Edge speeds of .08 mbps and the voice is sometimes garbled. I'm not sure how I can get it unlocked and working well with everything working and getting the HSPA+ speeds. I live in a 4gLTE area so I should get at least 3g speed according to tmobile's coverage map using 72703 zip code. Trying to figure this out if anyone has suggestions on how to get out of EDGE speeds, the 2G EDGE capabilities are appalling. I haven't flashed any custom ROMS btw.
Click to expand...
Click to collapse
1. Make sure modem version matches software version
2. Make sure network mode is set to WCMDA preferred or GSM/UMTS.
3. Check Settings->About phone->Network to make sure you're actually on EDGE.
You could live in an area that T-Mo hasn't refarmed to 1900 yet. If that's the case, they're running HSPA on 1700 there, and the phone doesn't have that frequency. So that would explain only being able to get EDGE

chris41g said:
I didn't know you had anything to do with it, me an auto got my s4 unlocked on irc before that post, even before his original international unlock post. Maybe you told him how and he just didn't inform me.
http://forum.xda-developers.com/showthread.php?p=45893621
Click to expand...
Click to collapse
Maybe I was a little late, I barely figured it out in the international unlock thread and put my findings their. No worries again thanks for making this more clear for others.
Sent from my XT1080 using Tapatalk

nicotheandroidguy said:
Maybe I was a little late, I barely figured it out in the international unlock thread and put my findings their. No worries again thanks for making this more clear for others.
Sent from my XT1080 using Tapatalk
Click to expand...
Click to collapse
I added you to the thanks, even if you didn't originally find it, you have helped others get there and that should be recognized.

chris41g said:
I added you to the thanks, even if you didn't originally find it, you have helped others get there and that should be recognized.
Click to expand...
Click to collapse
Thanks.
Sent from my XT1080 using Tapatalk

S4 SPRINT UNLOCK L720/l720t full gsm 4G/LTE unlock att/tm/international!!!!!

Please wait for tomorrow I will post a video and also a Lolipop rom since everyone wants it THIS WILL DELETE EVERYTHING OFF YOUR DEVICE
AND IF YOU HAVE L720T ONLY WITH 5.0 OR HIGHER THIS WONT WORK FOR YOU SORRY
i also have the unlock for the lg g2 HERE
and also the lg g3 HERE
lets start with
(DO NOT SKIP ANY STEPS FOR ANY REASON )
first if you have l720 you need to be on version 4.4.2 or lower if not you have to downgrade from HERE
if you are l720t with lollipop then you are out of luck
SO YOU WILL NEED COUPLE OF THINGS
FIRST LETS START WITH FILES YOU NEED ON YOUR COMPUTER
1.odin
2.l720:ROOT (IMPOTANT) YOU WILL NOW WHY
l720t:ROOT (IMPOTANT) YOU WILL NOW WHY
2.TWRP (SAME ONE FOR BOTH DEVICES)
3.for l720:SPH-L720_MDC_Modem.tar.md5
for l720t:SPH-L720t_mk5_Modem.tar
2nd what you will need on your device
1.SSU.apk
2.stock m919 rom (this is important for 4g/lte)
(this will also make your phone 100% stock tm)
alright lets start
first flash the modem and the root though odin
turn off the phone then press and hold the vol- and home and power and the same time then press vol+ when it ask you to continue
then plug in the phone to the pc
put the root in the PDA/AP selection
and put the modem in the "phone" selection and press start wait for it
you phone should reboot into a red screen wait for it to finish it will reboot by it self.
now open the supersu and disable Knox(important) if you don't you will have problems in the service later on
now install SSU.apk and open it and tap "UNLOCK"
now go to dialer and dial *#0011#
now it should go into a page with writing on it now tap menu and select back <-(do this twice)
now tap menu and tape key input and put a capital Q
and tap OK
now tap menu again and tap key input and put 0000 (four zeros) and tap OK and wait for a new screen to come on
now tap umts
(to go back tap menu then back (DO NOT PRESS THE BACK BUTTON))
UMTS Main Menu
1 Debug Screen -> 6 Phone Control -> 1 DRX Control = GSM DRX: ON / LTE DRX: Enables RX0 and RX1
1 Debug Screen -> 6 Phone Control -> 2 Fake Security Control = ON
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 1 Ciphering Control = OFF
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 2 Integrity Control = ON
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 3 Sim Class Control = UMTS
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 5 RRC(HSPA) Contrl -> 2 Change Revision -> 5 Release 8 (HSPA+)
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 7 NAS Avoid Security Control = 2 Security_check: OFF
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 8 BIP Block = 2 BIP Unblocking: set 1
1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 2 SW Watchdog <--hit this 6 times
1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 3 HW Watchdog <--hit this 6 times
then go back to the first page and tape CDMA then common then tap next page twice then tap 8 pref mod set and tap 2 GSM_WCDA
now reboot
Congrats
now your phone is unlock but only 3g
so now make sure your phone picks up signal before keep going
now comes the 4g/lte part
make sure you have the rom on the phone
now go into download mode again and put the TWRP.tar into the PDA/AP selection and uncheck autoreboot
now hit start and wait for the loading to finish after it says PASS
now take out your battery and wait 10 sec then put it in then press vol+ and home and power at the same time now you should see TWRP screen wait then tap wipe then slide to factory reset then press home then tap install the choose the m919 rom that you have downloaded then slide to install
after its done tape wipe cache/devilk then slid to wipe the just restart your device
Congrats now your phone is fully unlock with 4g/lte and you should be set for life :good::good::good::good::good:
please donate
paypal: [email protected]
their you have it , have fun guys
IF YOU HAVE L720 AND YOU WANT TO GO BACK TO SPRINT FOR SOME REASON JUST DO THE DOWNGRADE
​

Error
Thanks for the post, I have been trying this for a few days without success.
I hit a couple of snags after being rooted and installing the modem image as per your instructions.
1. I can't disable knox, are there more details you can provide?
2. ssu doesn't run it says "unfortunately, SSU has stopped".
I went through the dialer options anyway just to see what would happen and it appears that I still get a invalid sim card without the ability to enter the unlock code.
I figured I would do all the steps again in order to have a clean install once it's all tested and working but no luck.
Also in the step where you say "1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 2 SW Watchdog <--hit this 6 times" should I basically exit the dialer with back at that moment since going back many times doesn't get me back to the menu's?
One other question, I see this is android 4.2 if I do a firmware update from T-Mobile taking it to Lollipop will I loose the functionality of the phone/modem?
Thanks!

MiamiMike said:
Thanks for the post, I have been trying this for a few days without success.
I hit a couple of snags after being rooted and installing the modem image as per your instructions.
1. I can't disable knox, are there more details you can provide?
2. ssu doesn't run it says "unfortunately, SSU has stopped".
I went through the dialer options anyway just to see what would happen and it appears that I still get a invalid sim card without the ability to enter the unlock code.
I figured I would do all the steps again in order to have a clean install once it's all tested and working but no luck.
Also in the step where you say "1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 2 SW Watchdog <--hit this 6 times" should I basically exit the dialer with back at that moment since going back many times doesn't get me back to the menu's?
One other question, I see this is android 4.2 if I do a firmware update from T-Mobile taking it to Lollipop will I loose the functionality of the phone/modem?
Thanks!
Click to expand...
Click to collapse
Which version are you on and is it L720 or l720t
Disabling k ow is part of supersu so just look up another way to root your device and when you root it it's should ask you if you want to disable know just hit ok and the watchdog thing it's OK just reboot .

nfsmww said:
Which version are you on and is it L720 or l720t
Disabling k ow is part of supersu so just look up another way to root your device and when you root it it's should ask you if you want to disable know just hit ok
Click to expand...
Click to collapse
L720, but it never asked to disable it. Running Android 5.0.1
Also, SSU doesn't run ( I'm guessing in Lollipop ).

So I got everything working on my L720T.. My only concern is that will I be stuck on 4.3 if I want to keep LTE? I noticed the ROM I installed was actually a T-Mobile rom, any chance I could use a Lollipop T-Mobile ROM? Or is this version made to work with L720/L720T?

Hi i bought the s4 at first i didn't know if it was rooted or not but further investigations i found out it was rooted. The phone doesn't have that ssu apk nor superuser.apk which is kinda odd i ran apps that require root access and they worked fine i didn't receive any pop ups to allow access or block. I want to install a rom for which i need to install a recovery now my question is do i have to root again?
Q. How do i know what modem is currently installed ?
Q. Also at first i could see my carrie's name in notification bar now i see sprint is it locked again i can still use my sim and i am getting signals
Pease help i'm new to flashing modems.
Thanks in advance

sameer9092 said:
Hi i bought the s4 at first i didn't know if it was rooted or not but further investigations i found out it was rooted. The phone doesn't have that ssu apk nor superuser.apk which is kinda odd i ran apps that require root access and they worked fine i didn't receive any pop ups to allow access or block. I want to install a rom for which i need to install a recovery now my question is do i have to root again?
Q. How do i know what modem is currently installed ?
Q. Also at first i could see my carrie's name in notification bar now i see sprint is it locked again i can still use my sim and i am getting signals
Pease help i'm new to flashing modems.
Thanks in advance
Click to expand...
Click to collapse
Best thing to do is start over and just follow every step by step you should have unlock just do what I told you in the thread , just go slow step by step I explained everything you Don't need to check anything

davorsake said:
So I got everything working on my L720T.. My only concern is that will I be stuck on 4.3 if I want to keep LTE? I noticed the ROM I installed was actually a T-Mobile rom, any chance I could use a Lollipop T-Mobile ROM? Or is this version made to work with L720/L720T?
Click to expand...
Click to collapse
You could but the phone is going to lag a lot and freeze my friend did that but sometimes it just freezes

MiamiMike said:
L720, but it never asked to disable it. Running Android 5.0.1
Also, SSU doesn't run ( I'm guessing in Lollipop ).
Click to expand...
Click to collapse
You need to downgrade from the link I have in the post please guys don't skip steps and read carefully

doing the rooting process again won't harm phone right

nfsmww said:
You need to downgrade from the link I have in the post please guys don't skip steps and read carefully
Click to expand...
Click to collapse
I did downgrade the modem 100% as the instructions state, but in the end the sim card doesn't work.
Running Lollipop 5.0.1 SSU won't run, so I can't do the "unlock" part.

sameer9092 said:
doing the rooting process again won't harm phone right
Click to expand...
Click to collapse
You have to consider your warranty and carrier support if you root your phone.
I have rooted my phones hundreds of times without issues.
Pretty much everyone on this site I'm sure can say the same.
As long as you are careful to follow instructions you should be fine.

MiamiMike said:
I did downgrade the modem 100% as the instructions state, but in the end the sim card doesn't work.
Running Lollipop 5.0.1 SSU won't run, so I can't do the "unlock" part.
Click to expand...
Click to collapse
Downgrade your firmware not your modem , I am talking about downgrading them both READ CAREFULLY FOR GOD'S SAKE

nfsmww said:
Downgrade your firmware not your modem , I am talking about downgrading them both READ CAREFULLY FOR GOD'S SAKE
Click to expand...
Click to collapse
You are correct, I started in the download section of the instructions missing the first important part to downgrade first!
New Issue: Image provided IOdin executable fails several times, I use Odin so I'm familiar with the process, do you have an image onlY?
Let me ask you, once I go through the process can I upgrade to Lollipop OTA from TMobile or some other ROM without breaking the modem functionality?
Thanks!

MiamiMike said:
You are correct, I started in the download section of the instructions missing the first important part to downgrade first!
New Issue: Image provided IOdin executable fails several times, I use Odin so I'm familiar with the process, do you have an image onlY?
Let me ask you, once I go through the process can I upgrade to Lollipop OTA from TMobile or some other ROM without breaking the modem functionality?
Thanks!
Click to expand...
Click to collapse
I don't get it do u want Lolipop or ur phone working just do it and not you will have 4.4.2

We're only asking questions that we assume you would have the answer to. No need for hostility.

I have completed the steps EXACTLY as written twice without success.
Has anyone been able to accomlish this?

MiamiMike said:
I have completed the steps EXACTLY as written twice without success.
Has anyone been able to accomlish this?
Click to expand...
Click to collapse
This can be accomplished but not with his guide for he is missing some steps. Most likely copied and pasted from another thread found here:
http://forum.xda-developers.com/showthread.php?t=2530610
Use this ^ if you wish for a Domestic Unlock and a International Unlock.
Then if you want 4G LTE just follow this guides flashing of the M919 Stock ROM which is from the T-Mobile Galaxy S4.
Enjoy~

HermitDash said:
This can be accomplished but not with his guide for he is missing some steps. Most likely copied and pasted from another thread found here:
http://forum.xda-developers.com/showthread.php?t=2530610
Use this ^ if you wish for a Domestic Unlock and a International Unlock.
Then if you want 4G LTE just follow this guides flashing of the M919 Stock ROM which is from the T-Mobile Galaxy S4.
Enjoy~
Click to expand...
Click to collapse
Thanks! This worked!!!, a few kinks and I may simply redo the process to be safe since there are a lot of steps.
If I put lolipop on here will I then trash it?
Since I'm not at the Ninja level on this, couldn't someone create a AOKP rom with a clean AOSP, drop in the drivers from the sprint phone ( which I beleive are really just the modem ) using the downgraded modem already unlocked and create a custom ROM? Then the user can get the benefits of keeping up with Android updates more frequently while using there hardware on the GSM platform? ( wow thats a long question )

MiamiMike said:
Thanks! This worked!!!, a few kinks and I may simply redo the process to be safe since there are a lot of steps.
If I put lolipop on here will I then trash it?
Since I'm not at the Ninja level on this, couldn't someone create a AOKP rom with a clean AOSP, drop in the drivers from the sprint phone ( which I beleive are really just the modem ) using the downgraded modem already unlocked and create a custom ROM? Then the user can get the benefits of keeping up with Android updates more frequently while using there hardware on the GSM platform? ( wow thats a long question )
Click to expand...
Click to collapse
Lollipop will work on it, the latest it has is the OD2 firmware which is Android 5.0.1 if I'm not mistaken. I'm using the exact one and it still works. As for custom roms, you can use any since the modem is just a plugin of a sort. So if you want to do that all you need is to stay on the MDC modem make sure you are unlocked and working with T-Mobile or what ever carrier. THEN flash over to the AOSP/AOKP or what ever rom you want and it should work. The only reason you need to be on stock firmware is to do the Unlocking via Dialer Secret codes. But after that you should be working perfectly fine with AOSP/AOKP. If I remember correctly there should be a GPE (Google Play Edition) rom somewhere in the Dev forum for GS4 have a look around!
Good luck.

Nexus 6 - T-Mobile - Not connecting to LTE

I just got my wife a Nexus 6 from Craigslist. I foolishly didn't 100% test the phone and I think I got a lemon or something.
Her phone has never connected to LTE. I've tried manually changing APNs, swapping SIM cards with my phone to see if the card is bad, checking the phone settings by dialing *#*#4636#*#*, etc... And everything is identical to my Nexus 6 with no luck. I went to a T-Mobile store just now and they couldn't figure anything out.
Two questions:
1. Is there anything else I can do to get LTE activated?
2. Can an LTE radio be damaged or disabled somehow?
I'm at my wit's end here... I'm hoping y'all can help me get it fixed.
Thanks!

1st is the phone running stock or a custom rom? .second try to reset your apn setting to default and using the setting that the phone provides in apn

It is stock, no customization or rooting.
I'll try the default when my wife gets back from the store and report back.

Reset APN to default settings, no luck.
The previous owner was on a smaller carrier, like a Metro PCS or something similar... Can't remember, but I don't know if their settings are different than T-Mobile's.

Yes their settings are diff... metro is fast.metropcs.com for apn inside and tmobile is fast.t-mobile.com. You can try clicking the apn make sure its fast.t-mobile.com and check the ipv and set to ipv6 and ipv4 for roaming. Then at the very bottom under MVNO select None. Then restart phone. If your still not pulling up data you may want to push a radio image to the device possibly and maybe the radio firmware is screwed up since your not original owner of the device.

All the APN settings are correct and identical to my working Nexus 6.
Are there tutorials on how to push a radio image and where to get said radio image?

https://www.androidpit.com/how-to-update-nexus-5-bootloader-and-radio - Nexus 5 instructions but they are the same just download nexus 6 files instead from here
https://dl.google.com/dl/android/aosp/shamu-mob30i-factory-21357b09.tgz - MOB30I Latest Marshmallow files...
When you follow that guide you could just flash-all command it and flash marshmallow stock in its entirety... it would flash latest bootloader and modem with it or you can extract the modem and bootloader files from the file and follow the guide. If you dont care whats on device you may want to just flash the whole thing and skip the extracting the modem and bootloader parts.
**Obviously since you'd be replacing the nexus 5 files with 6 files aka shamu instead of hammerhead change the names in the commands you type in fastboot. Just a reminder.

Thanks so much for the help!
I'll try this later and let you know if it works.

hermunn123 said:
Thanks so much for the help!
I'll try this later and let you know if it works.
Click to expand...
Click to collapse
No problem and best of luck on it.

hermunn123 said:
I'm at my wit's end here... I'm hoping y'all can help me get it fixed.
Click to expand...
Click to collapse
Enter into the bootloader and check the Product/Variant information within. For the US, it should read "shamu XT1103" followed by the memory size and a hexadecimal string. If it reads "shamu XT1100", you have the international model, which would explain the trouble you're having. Another possible explanation, especially if the model is "shamu XT1103", is that the device is blocked on T-Mobile.
To answer your questions:
1. If you have an international model, you may be able to activate the missing bands necessary to support LTE here in the US. Otherwise, flash the latest ROM from Google, as there are settings in the services menu you accessed which once selected cannot be changed unless a new ROM image is flashed.
2. LTE radios can both be damaged and disabled. The LTE could be disabled in the service menu, or the hardware is damaged.

Strephon Alkhalikoi said:
Enter into the bootloader and check the Product/Variant information within. For the US, it should read "shamu XT1103" followed by the memory size and a hexadecimal string. If it reads "shamu XT1100", you have the international model, which would explain the trouble you're having. Another possible explanation, especially if the model is "shamu XT1103", is that the device is blocked on T-Mobile.
To answer your questions:
1. If you have an international model, you may be able to activate the missing bands necessary to support LTE here in the US. Otherwise, flash the latest ROM from Google, as there are settings in the services menu you accessed which once selected cannot be changed unless a new ROM image is flashed.
2. LTE radios can both be damaged and disabled. The LTE could be disabled in the service menu, or the hardware is damaged.
Click to expand...
Click to collapse
I have same problem. I have XT1100 on T-Mobile, but I can only use 3G. How to see which LTE bands on this devices are activated?

If you have an XT1100 in the US you're missing bands 2, 4, 12 and 17. Of those, bands 2 and 4 are the most important as AT&T and T-Mobile both use those bands extensively. And unlike the US model, Verizon and Sprint won't work at all. Search the General forum, as there is a thread on how to add bands to the radio. Be warned however. When I attempted it on my Galaxy S4 I nearly bricked the device.

Also (and I know its basic) but check under settings ---> mobile ---> preferred network type and make sure it says LTE (just on the off chance it was switched somehow)