Is the bootloader unlocked or no? - T-Mobile LG G4

On the tmo lg g4

Yes. Enable OEM unlock on the dev options.

20degrees said:
Yes. Enable OEM unlock on the dev options.
Click to expand...
Click to collapse
Lucky us then
Sent from my A0001

With the TMO version unlocked you'd think we'd have a simpler root method than flashing the entire /system partition, wouldn't you?

Barsky said:
With the TMO version unlocked you'd think we'd have a simpler root method than flashing the entire /system partition, wouldn't you?
Click to expand...
Click to collapse
There is. Check the dev section
Edit: http://forum.xda-developers.com/showthread.php?t=3172936
[TOOL] One Click TWRP (No root needed)
Sent from my LG-H811 using Tapatalk

coolmaster121 said:
There is. Check the dev section
Edit: http://forum.xda-developers.com/showthread.php?t=3172936
[TOOL] One Click TWRP (No root needed)
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
Great. Thanks

G4 newbie here, so the bootloader is fully unlocked on the T-Mobile version then? You don't have to do the official LG Developer unlock method that currently only the 815 EUR model can do?
When ROMs drop, you have full access to the phone? Just want to confirm, I had a non EUR model on AT&T that worked great, but was sick of not having any access to the system. Does the H811 have the bands required for AT&T?

Fully unlocked. No LG dev stuff.

20degrees said:
Fully unlocked. No LG dev stuff.
Click to expand...
Click to collapse
Question to anyone willing to answer:
How did people figure out that enabling OEM unlock made the bootloader be unlocked on the T-Mobile variant? I'm wondering because we have very little info on the H812 variant to determine if this technique would work. And please don't give me that canned answer "IT ONLY WORKS ON H815 and H811", as I know what I'm doing... I just want to understand why the H811 T-Mobile is different and if other more obscure variants could also have this solution.
Thanks!

I Attempted to flash the twrp one click recovery to my friends LG G4 H811 TMOBILE, I went to developer mode, checked the box to OEM UNLOCK, and whenever the phone reboots to Fastboot or Download mode, if done by the H811 one click bat script, the phone only reboots regularly, if i manually adb reboot-fastboot then the screen shows a barcode, and the phones IMEI number. Whats up with this?

pr0xych41ns said:
I Attempted to flash the twrp one click recovery to my friends LG G4 H811 TMOBILE, I went to developer mode, checked the box to OEM UNLOCK, and whenever the phone reboots to Fastboot or Download mode, if done by the H811 one click bat script, the phone only reboots regularly, if i manually adb reboot-fastboot then the screen shows a barcode, and the phones IMEI number. Whats up with this?
Click to expand...
Click to collapse
If you want root H81110N, just go this route. Much easier and works. http://forum.xda-developers.com/tmobile-g4/development/h81110n-stock-rooted-image-t3191038
---------- Post added at 04:54 PM ---------- Previous post was at 04:51 PM ----------
karendar said:
Question to anyone willing to answer:
How did people figure out that enabling OEM unlock made the bootloader be unlocked on the T-Mobile variant? I'm wondering because we have very little info on the H812 variant to determine if this technique would work. And please don't give me that canned answer "IT ONLY WORKS ON H815 and H811", as I know what I'm doing... I just want to understand why the H811 T-Mobile is different and if other more obscure variants could also have this solution.
Thanks!
Click to expand...
Click to collapse
The H811 Tmo is different because the carrier, TMO, decided to allow it to be unlocked. That is pretty much all there is to it. I am sure that is frustrating to non H815 and H811 owners.

coolmaster121 said:
Originally Posted by Barsky
With the TMO version unlocked you'd think we'd have a simpler root method than flashing the entire /system partition, wouldn't you?
Click to expand...
Click to collapse
There is. Check the dev section
Edit: http://forum.xda-developers.com/showthread.php?t=3172936
[TOOL] One Click TWRP (No root needed)
Click to expand...
Click to collapse
The first post in that thread says:
"T-Mobile USA LG G4 H811 10H. WILL NOT WORK ON 10N."
I have the 10N. I also don't have a Windows computer. Where can I find instructions for obtaining root? (I prefer a manual method using Linux commands if possible.)

Related

[Q] XT1050 Bootloader unlock

Hi
I'm thinking of buying an XT1050. But I haven't been able to find out whether the bootloader unlock is supported for that version of moto x. Can anyone confirm whether it's possible?
pyromaniac1 said:
Hi
I'm thinking of buying an XT1050. But I haven't been able to find out whether the bootloader unlock is supported for that version of moto x. Can anyone confirm whether it's possible?
Click to expand...
Click to collapse
What this user said
http://forum.xda-developers.com/showpost.php?p=52949525&postcount=352
aviwdoowks said:
What this user said
http://forum.xda-developers.com/showpost.php?p=52949525&postcount=352
Click to expand...
Click to collapse
I still haven't gotten it though. So I can't check myself
You are not Vzw, Att or RW? So see the previous posts in the thread. You may be unlockable w/o the China ul.
aviwdoowks said:
You are not Vzw, Att or RW? So see the previous posts in the thread. You may be unlockable w/o the China ul.
Click to expand...
Click to collapse
I thought the china unlock no longer works? :S
pyromaniac1 said:
I thought the china unlock no longer works? :S
Click to expand...
Click to collapse
Go general see China.
I realize that this thread is pretty old, but I just wanted to confirm I was able to use the Moto Unlock tool to unlock the bootloader on my Alltel XT1050. I am currently on the latest ACG update (161.44.31.ghost_row.ACG.en.US.) Follow the steps given by Moto here and you should get the unlock code.
Also, here is a simpler tool to use for ADB and fastboot (rather than downloading the entire Android SDK as Moto suggests.) When you want to use ADB/fastboot, open the command prompt and type
Code:
cd C:\adb
From there you can use the fastboot commands as per Moto Unlock instructions. Note that the $ sign is not necessary.
Hope this helps!
zakkary09 said:
I realize that this thread is pretty old, but I just wanted to confirm I was able to use the Moto Unlock tool to unlock the bootloader on my Alltel XT1050. I am currently on the latest ACG update (161.44.31.ghost_row.ACG.en.US.) Follow the steps given by Moto here and you should get the unlock code.
Also, here is a simpler tool to use for ADB and fastboot (rather than downloading the entire Android SDK as Moto suggests.) When you want to use ADB/fastboot, open the command prompt and type
Code:
cd C:\adb
From there you can use the fastboot commands as per Moto Unlock instructions. Note that the $ sign is not necessary.
Hope this helps!
Click to expand...
Click to collapse
Yup and also sim unlocked
Sent from my Moto X using Tapatalk

Is the boost mobile G6 Play bootloader unlockable?

I remember other moto phones on boost have always been bootloader unlockable.
triggerlord said:
I remember other moto phones on boost have always been bootloader unlockable.
Click to expand...
Click to collapse
I have not heard of any of the G6 family not being unlockable.
Sent from my moto g(6) plus using Tapatalk
triggerlord said:
I remember other moto phones on boost have always been bootloader unlockable.
Click to expand...
Click to collapse
Yes the bootloader for the XT1922-7 is unlockable and you can root it too. See my thread in this forum for more info.
I can also saying without a doubt that the Moto G6 play 4 Boost Mobile has unlockable bootloader.
Does that mean you can use it on a different carrier as well then? I know bootloader unlocked is different than carrier unlocked.
shawndak said:
Does that mean you can use it on a different carrier as well then? I know bootloader unlocked is different than carrier unlocked.
Click to expand...
Click to collapse
Bootloader unlocked is only for modding purpose, TWRP, Root, Backup, customizations and so on..
xdauser2018 said:
Bootloader unlocked is only for modding purpose, TWRP, Root, Backup, customizations and so on..
Click to expand...
Click to collapse
Yes of course. I know Verizon varients of Moto phones have the bootloader locked which I would assume is to make sure it's used with there service only.
Its just interesting you can unlock the boost models but not Verizon.
Is the phone locked to the carrier via IMEI then?
shawndak said:
Yes of course. I know Verizon varients of Moto phones have the bootloader locked which I would assume is to make sure it's used with there service only.
Its just interesting you can unlock the boost models but not Verizon.
Is the phone locked to the carrier via IMEI then?
Click to expand...
Click to collapse
It doesn't matter, it's not related to bootloader. New devices always comes with locked bootloader, for safety purpose and warranty. Many brands allow to unlock easily (OnePlus, Motorola...) some other need permission (Xiaomi, Huawei).. In many case unlocked boot and root could result in a warranty loose.
I understand this. Perhaps I'm not asking the proper questions. Verizon's Motorola devices do not allow the bootloader to be unlocked, at all. They allow the device to be carrier unlocked after a year though.
Can you use the boost Mobile g6 with different carriers??
triggerlord said:
I remember other moto phones on boost have always been bootloader unlockable.
Click to expand...
Click to collapse
I also have the boost moto g6 play xt1922 and i tried unlocking the bootloader and it said my device wasnt able...
any clue how i can unlock it?
---------- Post added at 08:33 AM ---------- Previous post was at 08:31 AM ----------
kwiksi1ver said:
Yes the bootloader for the XT1922-7 is unlockable and you can root it too. See my thread in this forum for more info.
Click to expand...
Click to collapse
i tried to unlock it and wasnt able. is their a link to how you did it?
[email protected] said:
I also have the boost moto g6 play xt1922 and i tried unlocking the bootloader and it said my device wasnt able...
any clue how i can unlock it?
---------- Post added at 08:33 AM ---------- Previous post was at 08:31 AM ----------
i tried to unlock it and wasnt able. is their a link to how you did it?
Click to expand...
Click to collapse
How did you try to unlock it?
I booted up the phone, went to developer options, enabled unlocking, rebooted to bootloader mode, ran the "fastboot oem get_unlock_data" command and put that into the motorola site for unlocking bootloaders, and got the unlock key. Then I followed the directions and used the command "fastboot oem unlock myUniqueKeyFromMotorola".
Can the Boost g6 play be network unlocked? I was thinking of picking up the boost variant at Walmart and using on MetroPCS. I've had success doing this in the past with the Verizon prepaid Moto G & E series but never tried with the boost prepaid.
kwiksi1ver said:
How did you try to unlock it?
I booted up the phone, went to developer options, enabled unlocking, rebooted to bootloader mode, ran the "fastboot oem get_unlock_data" command and put that into the motorola site for unlocking bootloaders, and got the unlock key. Then I followed the directions and used the command "fastboot oem unlock myUniqueKeyFromMotorola".
Click to expand...
Click to collapse
I enabled OEM and USB debugging turned the phone off and put it in fastboot and connected it to my laptop and ran kingroot. I'm gonna assume I did it completely wrong lol
[email protected] said:
I enabled OEM and USB debugging turned the phone off and put it in fastboot and connected it to my laptop and ran kingroot. I'm gonna assume I did it completely wrong lol
Click to expand...
Click to collapse
100% wrong. I listed the steps you need to follow. Kingroot does not unlock bootloaders.
kwiksi1ver said:
100% wrong. I listed the steps you need to follow. Kingroot does not unlock bootloaders.
Click to expand...
Click to collapse
Alright thanks... figured I was doing something wrong.
kwiksi1ver said:
100% wrong. I listed the steps you need to follow. Kingroot does not unlock bootloaders.
Click to expand...
Click to collapse
I went to their website and it says my device isn't eligible...weird because I have boost Mobile
Xt1922-7.
Umm I have the boost Mobile variant of the g6 play and it's def Eligible for bootloader unlock. I have it bootloader unlocked and rooted And have twrp custom recovery with magisk running perfect Follow guide to root https://forum.xda-developers.com/moto-g6/how-to/guide-twrp-root-magisk-installation-t3802715
Provided screenshots
shawndak said:
I understand this. Perhaps I'm not asking the proper questions. Verizon's Motorola devices do not allow the bootloader to be unlocked, at all. They allow the device to be carrier unlocked after a year though.
Can you use the boost Mobile g6 with different carriers??
Click to expand...
Click to collapse
What we're saying is that the two are unrelated. (But yes, you can carrier unlock boost phones. They don't make it easy though.)
triggerlord said:
What we're saying is that the two are unrelated. (But yes, you can carrier unlock boost phones. They don't make it easy though.)
Click to expand...
Click to collapse
Boost Mobile is 12 months with the device. And Sprint is 50 days. Boost runs off of sprint. You have to call customer service to request a sim unlock. You can buy an unlocked one from like bestbuy or from motorola's website. Sim unlock is different from bootloader unlock. Unlocking the bootloader does not unlock the sim card. Sorry I didn't realize I was quoting what you said sorry triggerlord
---------- Post added at 04:59 AM ---------- Previous post was at 04:36 AM ----------
shawndak said:
Does that mean you can use it on a different carrier as well then? I know bootloader unlocked is different than carrier unlocked.
Click to expand...
Click to collapse
Boost Mobile is 12 months with the device. And Sprint is 50 days. Boost runs off of sprint. You have to call customer service to request a sim unlock. You can buy an unlocked one from like bestbuy or from motorola's website. Sim unlock is different from bootloader unlock. Unlocking the bootloader does not unlock the sim card.

LG V405UA SPRINT no fastboot

Hello
After many search on the Web, i have no response to my problem.
My LG V40 sprint refuse to access to fastboot.
Please help me
Mine either, I asked a couple times but no answer. Good luck.:good:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
There's your answer
Sent from my LM-V405 using Tapatalk
Thanks at all
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
Mine is.
Droidman61 said:
Mine is.
Click to expand...
Click to collapse
Then you should be getting the V35 bootloader/Fastboot.....
Ainz_Ooal_Gown said:
Then you should be getting the V35 bootloader/Fastboot.....
Click to expand...
Click to collapse
Nope cant get to it, and my Sprint connection wont work. Out of Service Area Mobile Network is unavailable. If you know a way to get to it that would be great.:good:
I also have a v40 with the bootloader unlocked (can enable USB debugging in Developer tools), but whenever I try to boot to fastboot mode (either from recovery or adb) it just boots back to normal Android OS.
Were you ever able to figure this out?
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
I have LG V40 Verizon and can i unlock bootloader?
robishavidze said:
I have LG V40 Verizon and can i unlock bootloader?
Click to expand...
Click to collapse
Yes, just not officially
Ainz_Ooal_Gown said:
Yes, just not officially
Click to expand...
Click to collapse
I unlocked it. It unlocked by Vlad
skippybosco said:
I also have a v40 with the bootloader unlocked (can enable USB debugging in Developer tools), but whenever I try to boot to fastboot mode (either from recovery or adb) it just boots back to normal Android OS.
Were you ever able to figure this out?
Click to expand...
Click to collapse
The process to unlock your bootloader is a bit more "involved" than just simply flipping a switch..
Talysdaddy said:
The process to unlock your bootloader is a bit more "involved" than just simply flipping a switch..
Click to expand...
Click to collapse
I've been on Android for 10 years, originally with the Galaxy S1 and many devices across multiple manufacturers.. The ability to "Enable OEM Unlock" at all has been a key indicator of whether the bootloder was unlocked. This was true for all of my devices, up to my LG v30 that I continue use for my daily driver.
The v40 was the first device that allowed me to enable OEM Unlock without the bootloader being unlocked, which is why I was confused.
Thanks for the reply.
I'm having the AT&T version (LM-V405UA), can I unlock its bootloader? I can't seem to be able to boot into fastboot mode though.. Weird.
---------- Post added at 09:50 PM ---------- Previous post was at 09:47 PM ----------
robishavidze said:
I unlocked it. It unlocked by Vlad
Click to expand...
Click to collapse
Hi, how can I contact him?
skippybosco said:
I've been on Android for 10 years, originally with the Galaxy S1 and many devices across multiple manufacturers.. The ability to "Enable OEM Unlock" at all has been a key indicator of whether the bootloder was unlocked. This was true for all of my devices, up to my LG v30 that I continue use for my daily driver.
The v40 was the first device that allowed me to enable OEM Unlock without the bootloader being unlocked, which is why I was confused.
Thanks for the reply.
Click to expand...
Click to collapse
Almost every Android I've had allowed me to enable OEM unlock....since for the most part it needs to be ticked on so that you can unlock it...
Ainz_Ooal_Gown said:
Almost every Android I've had allowed me to enable OEM unlock....since for the most part it needs to be ticked on so that you can unlock it...
Click to expand...
Click to collapse
Right. That was my point as well.
https://en.droidwiki.org/wiki/OEM-Unlock
Enabling OEM Unlock itself does not unlock the bootloader, but you can not unlock the bootloader unless it is unlocked.
This is the first device I've used that allowed me to enable OEM Unlock, but DID NOT allow me to unlock the bootloder. For other devices that had a locked bootloader, the first step of enabling OEM Unlock wasn't even an option, it was either missing altogether, or it was greyed out and unchangeable. That was my confusion.
skippybosco said:
Right. That was my point as well.
https://en.droidwiki.org/wiki/OEM-Unlock
Enabling OEM Unlock itself does not unlock the bootloader, but you can not unlock the bootloader unless it is unlocked.
This is the first device I've used that allowed me to enable OEM Unlock, but DID NOT allow me to unlock the bootloder. For other devices that had a locked bootloader, the first step of enabling OEM Unlock wasn't even an option, it was either missing altogether, or it was greyed out and unchangeable. That was my confusion.
Click to expand...
Click to collapse
With the OG LG Stylo the boost variant was the only one that couldn't be unlocked but OEM unlock was tickable we managed to root it but couldn't use TWRP that was available for the other 2 carrier variants....
Hola como lograste rootear tu lg v40 amigo?
robishavidze said:
I unlocked it. It unlocked by Vlad
Click to expand...
Click to collapse
Hola como lograste rootear tu lg v40 amigo?
You need to wipe your laf partition to get fastboot. Tread lightly, this phone is no fun to mod lol
lmick14000 said:
Hello
After many search on the Web, i have no response to my problem.
My LG V40 sprint refuse to access to fastboot.
Please help
Click to expand...
Click to collapse

Sprint crossflash to US unlocked pie

I did the crossflash of my lg v40 to the US unlocked pie V405UA20a very very simply without unlocking bootloader, root or some other step. Everything works great, my imei was not deleted, nor my serial number. just flash the kdz by installing lgup and ... can i help you to do the crossflash
Everything works perfect but there is no option for Wi-Fi calls? someone knows?
Hello
EddiePR said:
I did the crossflash of my lg v40 to the US unlocked pie V405UA20a very very simply without unlocking bootloader, root or some other step. Everything works great, my imei was not deleted, nor my serial number. just flash the kdz by installing lgup and ... can i help you to do the crossflash
Everything works perfect but there is no option for Wi-Fi calls? someone knows?
Click to expand...
Click to collapse
So could you explain how you did the crossflash with the bootloader not being unlocked. I have LGUP installed and the US unlocked KDZ file. It failed for me.
Which guide did you use or if you care to explain the steps here. Thanks!
EDIT: Figured it out.
New question, are you able to put TWRP on your phone with current methods out there? if so, how?
Will OTA still work?
conmonks said:
So could you explain how you did the crossflash with the bootloader not being unlocked. I have LGUP installed and the US unlocked KDZ file. It failed for me.
Which guide did you use or if you care to explain the steps here. Thanks!
EDIT: Figured it out.
New question, are you able to put TWRP on your phone with current methods out there? if so, how?
Click to expand...
Click to collapse
I have not tried TWRP. just the crossflash
jimmyStoo said:
Will OTA still work?
Click to expand...
Click to collapse
I can't confirm if the OTA works since there is no new version yet
EddiePR said:
I can't confirm if the OTA works since there is no new version yet
Click to expand...
Click to collapse
Your device was unlocked before you Crossflashed?
0x0null said:
Your device was unlocked before you Crossflashed?
Click to expand...
Click to collapse
no. flashing the US unlocked rom no sim unlocks. but it no longer shows the uicc unlock option in settings.
conmonks said:
So could you explain how you did the crossflash with the bootloader not being unlocked. I have LGUP installed and the US unlocked KDZ file. It failed for me.
Which guide did you use or if you care to explain the steps here. Thanks!
EDIT: Figured it out.
New question, are you able to put TWRP on your phone with current methods out there? if so, how?
Click to expand...
Click to collapse
Do you mind sharing how you figured it out? I've tried doing this with my Sprint unlocked device but I have had no success so far. Device isn't recognized despite downloading LG Mobile Drivers.
sammibulin said:
Do you mind sharing how you figured it out? I've tried doing this with my Sprint unlocked device but I have had no success so far. Device isn't recognized despite downloading LG Mobile Drivers.
Click to expand...
Click to collapse
Yes. I'm not very good in English and I do not know how to create a guide here in XDA. But give me a chance and I'll try
[Guide]
I am not responsible if something goes wrong.
everything works perfect with total comptability, but I can't confirm if fastboot can be accessed after crossflash. Also, there is no option of wifi calling or calling plus, I cannot confirm OTA, because I installed android pie and it is the latest version for US unlocked. ***Maybe if you install the latest android 8 oreo before ,then you can test if ota works***
Downloads:
files: https://drive.google.com/open?id=1b-ZK3pN2ph7JvG6n4sDyXHxGLT53IfvE
firmware: https://lg-firmwares.com/lg-lmv405qa-firmwares/#tab=firmwares
*rename the firmware file to pie.kdz and put in desktop*
install lg usb drivers (be sure your device can adb. enable usb debugging, open command and put adb devices. check notification on the device and hit always. also Switch between all USB connection modes from the mobile so that Windows installs all the drivers
install lg up
Put LGUP_command.dll it into the folder: C:\Program Files (x86)\LG Electronics\LGUP\model\common ( if there is no common folder, create one and put the file there )
now...
put device in download mode
power off device
connect usb cable to pc, but not the phone
Hold and keep phone volume up
Plug your USB Cable to your phone while holding volume up, already in download mode, release volume up button
now go to device manager an check in ports/lge the value number for example com3, save it
Then go back to C:\Program Files (x86)\LG Electronics\LGUP
Hold the shift key and right click on a free space.
Choose to open a command prompt or PowerShell in Windows 10
After oppening it, type cmd and hit enter.
now you need to put this
lgup_cmd.exe com3 “C:\Program Files (x86)\LG Electronics\LGUP\model\common\LGUP_Common.dll” “C:\Users\your desktop username\Desktop\pie.kdz
and hit enter, but need to change the com number value. for example mine was com3. if yours is com2, com5 or another just change the number.
and that is. if you do it right then it will start flashing and you will see the progress on the mobile and the powershell
I have an Lg V40 sprint unlocked, would I lose the unlock if I try this?
oscarillo said:
I have an Lg V40 sprint unlocked, would I lose the unlock if I try this?
Click to expand...
Click to collapse
Certainly not, but I can't confirm it
EddiePR said:
Certainly not, but I can't confirm it
Click to expand...
Click to collapse
It did work!
Still unlocked
Thanks
oscarillo said:
It did work!
Still unlocked
Thanks
Click to expand...
Click to collapse
Very nice
jimmyStoo said:
Will OTA still work?
Click to expand...
Click to collapse
I did cross flash to verizon frirmware and the OTA works. So, i hope US unlocked too
i have a us cellular variant, can I convert to the us unlock with this trick?
gtuxyco said:
i have a us cellular variant, can I convert to the us unlock with this trick?
Click to expand...
Click to collapse
I don't know, but I'm almost sure you can
EddiePR said:
I did the crossflash of my lg v40 to the US unlocked pie V405UA20a very very simply without unlocking bootloader, root or some other step. Everything works great, my imei was not deleted, nor my serial number. just flash the kdz by installing lgup and ... can i help you to do the crossflash
Everything works perfect but there is no option for Wi-Fi calls? someone knows?
Click to expand...
Click to collapse
This crossflah works for the att variant too?
Would this factory reset data ?
brigantti said:
This crossflah works for the att variant too?
Click to expand...
Click to collapse
Not sure

Best guides to follow: V405QA + Crossflash + Lineage + root

I just bought a carrier unlocked V405QA running V405UA20a. Confirmed with my t-mobile sim card.
My goal is to install Lineage 17.1 with root via TWRP and use it on t-mobile service. After reading a lot I’m still not 100% sure how to proceed.
The steps I think I should follow are:
Crossflash with a US unlocked rom (V405QA20a). Using this guide.
Unlock the bootloader using this guide. Since I have "Enable OEM Unlock" and I’m running Pie I think I should skip the V35 Bootloader section but I’m not sure.
Install TWRP and root using this guide.
There's also this guide from getdroidtips.com which seems simpler and covers steps 2 and 3.
Has anyone tried similar steps?
Is crossflashing required if I'm going to load Lineage anyway?
Can step 2 result in loosing fastboot?
Is getdroidtips guide a better approach?
Thanks for any advice you can offer.
I'm trying to do this too
I have had a good few headaches from it, and still am not done. But most of my headaches I could easily say are my fault.
Crossflashing worked great for me, works with Tmobile
When I first unlocked I was able to use fastboot, get TWRP working, and run LineageOS. But after stuff messing up, I have now lost fastboot mode and don't know how to get it back
It's all possible, and not too hard. I personally followed the steps you think you should follow. But I'd recommend hearing what other people have to say first before you start doing things.
Edit : I got a sprint carrier locked one and made it unlocked
So I’m not 100% sure on the steps for unlocking that the getdroidtips.com guide gives you. I’m pretty sure it only works for European models. Honestly, the other two guides don’t look too crazy. Although, you may want to cross flash AFTER unlocking your boot loader. My v40 gets here sometime this week. I’ll try to follow the other guides and I’ll let you know how it goes.
NoburtM said:
I'm trying to do this too
I have had a good few headaches from it, and still am not done. But most of my headaches I could easily say are my fault.
Crossflashing worked great for me, works with Tmobile
When I first unlocked I was able to use fastboot, get TWRP working, and run LineageOS. But after stuff messing up, I have now lost fastboot mode and don't know how to get it back
It's all possible, and not too hard. I personally followed the steps you think you should follow. But I'd recommend hearing what other people have to say first before you start doing things.
Edit : I got a sprint carrier locked one and made it unlocked
Click to expand...
Click to collapse
How did you sim unlocked your Sprint phone? Tia
Metconnect2000 said:
How did you sim unlocked your Sprint phone? Tia
Click to expand...
Click to collapse
Just google it, there are a ton of different guides. You can either contact sprint, or you can pay for an unlock service. Usually they are like 10$
Metconnect2000 said:
How did you sim unlocked your Sprint phone? Tia
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I just followed the 9008 method to make my phone be able to use my tmobile sim card.
https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
NoburtM said:
I just followed the 9008 method to make my phone be able to use my tmobile sim card.
https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
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Thanks! I thought the guide is only for bootloader unlocked. Does it carrier unlock the phones too?
Metconnect2000 said:
Thanks! I thought the guide is only for bootloader unlocked. Does it carrier unlock the phones too?
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I'm 99% sure this method is only to unlock/mod the bootloader....and does NOT network/carrier /sim unlock anything. If there is a sim/unlock method that is do-it-yourself, it would require flashing a rom etc. I would love to be wrong here though.
poog said:
I'm 99% sure this method is only to unlock/mod the bootloader....and does NOT network/carrier /sim unlock anything. If there is a sim/unlock method that is do-it-yourself, it would require flashing a rom etc. I would love to be wrong here though.
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Thanks. That's what I thought too. Was puzzled by the earlier poster.
mrvoidman said:
I just bought a carrier unlocked V405QA running V405UA20a. Confirmed with my t-mobile sim card.
My goal is to install Lineage 17.1 with root via TWRP and use it on t-mobile service. After reading a lot I’m still not 100% sure how to proceed.
The steps I think I should follow are:
Crossflash with a US unlocked rom (V405QA20a). Using this guide.
Unlock the bootloader using this guide. Since I have "Enable OEM Unlock" and I’m running Pie I think I should skip the V35 Bootloader section but I’m not sure.
Install TWRP and root using this guide.
There's also this guide from getdroidtips.com which seems simpler and covers steps 2 and 3.
Has anyone tried similar steps?
Is crossflashing required if I'm going to load Lineage anyway?
Can step 2 result in loosing fastboot?
Is getdroidtips guide a better approach?
Thanks for any advice you can offer.
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Just follow the whole guide and definitely do not use getdroidtips. You still need the engineering abl to enable fastboot and run the unlock command
---------- Post added at 09:12 AM ---------- Previous post was at 09:11 AM ----------
Metconnect2000 said:
Thanks! I thought the guide is only for bootloader unlocked. Does it carrier unlock the phones too?
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No it definitely doesn't...

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