Will an unlocked Galaxy Note 8 get VoLTE? - Sprint Samsung Galaxy Note 8 Questions & Answers

I can't seem to find a straight answer to what phones will get VoLTE and what markets have been turned on. I have an unlocked Note 8 in the Nashville market. I'm not certain if 1) the market has VoLTE yet and 2) if my phone will even have the ability to use it. Does anyone have any insights? I'm asking because I'm wondering if I need to flash to the Sprint firmware in order to even get VoLTE.

ctasich said:
I can't seem to find a straight answer to what phones will get VoLTE and what markets have been turned on. I have an unlocked Note 8 in the Nashville market. I'm not certain if 1) the market has VoLTE yet and 2) if my phone will even have the ability to use it. Does anyone have any insights? I'm asking because I'm wondering if I need to flash to the Sprint firmware in order to even get VoLTE.
Click to expand...
Click to collapse
You need the carrier firmware in order to get that.

MrMike2182 said:
You need the carrier firmware in order to get that.
Click to expand...
Click to collapse
That's what I was afraid of... From what I remember, it's pretty easy to flash the carrier firmware, correct? I just need to use Odin. Are there any major downsides to doing so other than the Sprint bloatware?
Also, if I flash the carrier firmware, will the SM-N950U1 (SPR) firmware work or do I need to switch it to the SM-N950U (SPR) firmware?

ctasich said:
That's what I was afraid of... From what I remember, it's pretty easy to flash the carrier firmware, correct? I just need to use Odin. Are there any major downsides to doing so other than the Sprint bloatware?
Also, if I flash the carrier firmware, will the SM-N950U1 (SPR) firmware work or do I need to switch it to the SM-N950U (SPR) firmware?
Click to expand...
Click to collapse
There's no downside to doing it other than the bloatware no but you can easily get rid of the bloatware without using any apps.. There's a way to uninstall them via adb using a computer.. It's not hard. And unfortunately you have to use the N950U version because N950U1 firmware doesn't have it and probably won't otherwise it would have already been on it by now I would think but it's not and I'm on N950U1 firmware and don't have it not even on the latest update..

Ctasich did you end up flashing carrier firmware? And if so did you get volte back?

Related

T-Mobile stock firmware on SM-G920T factory unlocked version

I recently purchased the G920T factory unlocked version on eBay, is it safe to Odin any T-Mobile stock firmware, any info will be appreciated, thanks in advance.
Once you above a certain firmware you can't go back. What firmware you currently on?
It is currently on G920TUEU3COK1 can I Odin to the latest T-Mobile G920TUVS3DOJC I understand that I can't go back but is it safe and will it function normally, thanks for the reply.
i have this same question because from what ive read 3COK1 is for Cellular South (aka C Spire). while the 3DOJC is for Tmobile, both under the G920t firmware. are you also on tmobile network with this phone?
What are the benefits of flashing T-Mobile firmware on the USA factory unlocked phone? I have this phone on T-Mobile and wifi calling works. I also get great reception. I assume this phone will get Marshmallow months before T-Mobile releases their build
sebmw said:
It is currently on G920TUEU3COK1 can I Odin to the latest T-Mobile G920TUVS3DOJC I understand that I can't go back but is it safe and will it function normally, thanks for the reply.
Click to expand...
Click to collapse
Does this firmware that the device came with (G920TUEU3COK1) have any carrier branding or logos anywhere? Id like to switch if it doesn't have carrier branding
andreinept said:
Does this firmware that the device came with (G920TUEU3COK1) have any carrier branding or logos anywhere? Id like to switch if it doesn't have carrier branding
Click to expand...
Click to collapse
It has no carrier branding or logos anywhere.
HKSpeed said:
What are the benefits of flashing T-Mobile firmware on the USA factory unlocked phone? I have this phone on T-Mobile and wifi calling works. I also get great reception. I assume this phone will get Marshmallow months before T-Mobile releases their build
Click to expand...
Click to collapse
Are you getting LTE on it.
So I flashed the C Spire firmware and it asked for an unlock code. I flashed back to the original tmobile firmware and it is still locked although it was unlocked before, but the device unlock app says its ineligible for unlock now.
Anybody else encountered this?
Call t mobile customer service and ask them. They can adjust their servers and then the unlock app will work.
tyrone1 said:
Call t mobile customer service and ask them. They can adjust their servers and then the unlock app will work.
Click to expand...
Click to collapse
have you tried it before? because they keep saying that they cant do it
sebmw said:
Are you getting LTE on it.
Click to expand...
Click to collapse
I get LTE. Sometimes get "LTE+". Whatever that means.
andreinept said:
have you tried it before? because they keep saying that they cant do it
Click to expand...
Click to collapse
I'm sorry I misread that this a different model. I'd try to contact the user stifilz to unlock.
andreinept said:
So I flashed the C Spire firmware and it asked for an unlock code. I flashed back to the original tmobile firmware and it is still locked although it was unlocked before, but the device unlock app says its ineligible for unlock now.
Anybody else encountered this?
Click to expand...
Click to collapse
Were you able to get it unlocked? I plan on doing the same, flashing the unbranded to my t-mobile that is currently unlocked.
mon7707 said:
Were you able to get it unlocked? I plan on doing the same, flashing the unbranded to my t-mobile that is currently unlocked.
Click to expand...
Click to collapse
I'd advise that you dont.
To unlock it I had to flash back to the original tmobile rom. From the tmobile rom, the device unlock app failed in different ways.
After i called tmobile over and over I got it unlocked (like 2 hours of calling).
Hurts my heart to see all the tmobile bloat, especially when i dont even live in the US, but at least my phone works
andreinept said:
I'd advise that you dont.
To unlock it I had to flash back to the original tmobile rom. From the tmobile rom, the device unlock app failed in different ways.
After i called tmobile over and over I got it unlocked (like 2 hours of calling).
Hurts my heart to see all the tmobile bloat, especially when i dont even live in the US, but at least my phone works
Click to expand...
Click to collapse
Thank you, I guess I'll just sell this one and buy an international unlocked, glad to hear you got your phone working.
Anyone successfully updated this G920TUEU3COK1 US factory unlocked version to marshmallow? I have Samsung Pay, wifi calling, etc. all enabled on mine and would like to update, but also keep the unlocked non-bloated firmware.
losonn said:
Anyone successfully updated this G920TUEU3COK1 US factory unlocked version to marshmallow? I have Samsung Pay, wifi calling, etc. all enabled on mine and would like to update, but also keep the unlocked non-bloated firmware.
Click to expand...
Click to collapse
Yes its works. However it does add in tmobile bloatware, not bad tho, only about 5 apps
Sent from my SM-G920T using XDA-Developers mobile app
ejbmvp said:
Yes its works. However it does add in tmobile bloatware, not bad tho, only about 5 apps
Sent from my SM-G920T using XDA-Developers mobile app
Click to expand...
Click to collapse
Which method did you use to update the G920TUEU3COK1 US factory unlocked version? Does using the Tmo firmware risk un-unlocking the phone?
losonn said:
Which method did you use to update the G920TUEU3COK1 US factory unlocked version? Does using the Tmo firmware risk un-unlocking the phone?
Click to expand...
Click to collapse
Flashed t-mobile mm via odin. After rebooted it complained about network lock since Im using att sim. I put it back to dl mode. Extracted modem.bin from our 5.1.1 build and Flashed via odin. Bam no more network lock and able to use att sim again.
Followed reddit thread
Sent from my SM-G920T using XDA-Developers mobile app

If I Flash the Unlocked Firmware on my Carrier Branded Note 8 Will it Trip Knox?

I saw the unlocked firmware floating around the forums that require Odin to flash. I currently have Verizon and was wondering if flashing the firmware would trip knox and remove features such as Samsung Pay and Secure folder.
datder said:
I saw the unlocked firmware floating around the forums that require Odin to flash. I currently have Verizon and was wondering if flashing the firmware would trip knox and remove features such as Samsung Pay and Secure folder.
Click to expand...
Click to collapse
This is a fair question and I'm inclined to say yes. I will tyr thim myself to find out as I picked up my Locked Note 8 today and in the same postion as you.
datder said:
I saw the unlocked firmware floating around the forums that require Odin to flash. I currently have Verizon and was wondering if flashing the firmware would trip knox and remove features such as Samsung Pay and Secure folder.
Click to expand...
Click to collapse
no it will not. confirmed working on the unlocked firmware and tmob firmware
guaneet said:
no it will not. confirmed working on the unlocked firmware and tmob firmware
Click to expand...
Click to collapse
Yup, I flashed it and it did not trip Knox. Was on Stock AT&T then went to Unlocked firmware.
GallardosEggrollShop said:
Yup, I flashed it and it did not trip Knox. Was on Stock AT&T then went to Unlocked firmware.
Click to expand...
Click to collapse
What are the benefits of having the unlocked firmware?
guaneet said:
no it will not. confirmed working on the unlocked firmware and tmob firmware
Click to expand...
Click to collapse
GallardosEggrollShop said:
Yup, I flashed it and it did not trip Knox. Was on Stock AT&T then went to Unlocked firmware.
Click to expand...
Click to collapse
That is awesome to know we have the option. And I assume if you ever go back to flashing the carrier firmware it also wouldn't trip Knox?
---------- Post added at 07:42 PM ---------- Previous post was at 07:40 PM ----------
jellybear456 said:
What are the benefits of having the unlocked firmware?
Click to expand...
Click to collapse
I think the benefit would be if the carrier doesn't release timely updated but Samsung releases it for the unlocked device. Or to get rid of bloatware preinstalled by carriers.
Oat23 said:
That is awesome to know we have the option. And I assume if you ever go back to flashing the carrier firmware it also wouldn't trip Knox?
Click to expand...
Click to collapse
Correct. You must use a custom odin version to flash the unlocked version and the regular/latest odin to flash the carrier version.
And no it will not trip knox period.
---------- Post added at 07:45 PM ---------- Previous post was at 07:42 PM ----------
jellybear456 said:
What are the benefits of having the unlocked firmware?
Click to expand...
Click to collapse
A bloatfree stock Samsung rom. So no tmob/att/Verizon apps, unlimited hotspot, a few other things too but depending on the carrier you might not have voLTE , Wi-Fi calling, RCS, 4x4 mini, 256qam.
I stuck with the stock carrier rom because everything just works.
Updates are usually quicker with a carrier rom, but lately Samsung is releasing unlocked updates within a week after carrier
I've been using the unlocked firmware for a few days and it's been great. The bloatware took up at least a few gigs of space and I got those back with the unlocked. I also feel my battery life is better but could just be a placebo effect. Regardless I'm glad I did it.
I may flash it. Although, I do have Xfinity Mobile, and I was shocked that nothing Comcast came on the device.
I've been using the unlocked firmware since I've got the phone and it's been fine.
Jammol said:
I may flash it. Although, I do have Xfinity Mobile, and I was shocked that nothing Comcast came on the device.
Click to expand...
Click to collapse
What is the product code for xfinity? For instance, Sprint is SPR, T-Mobile is TMB...is xfinity CCT?
BlueFox721 said:
What is the product code for xfinity? For instance, Sprint is SPR, T-Mobile is TMB...is xfinity CCT?
Click to expand...
Click to collapse
How would I get that info for you? Under About Phone?
Edit: I checked under about phone->carrier softver: CCT.
If you flash xfinity to unlocked, do you get all bands working for carriers like tmobile?
thanks.
Hello,
I have flashed unlocked firmware to network unlocked T-Mobile Note 8s without tripping Knox yet.
I have also flashed specific CSCs to T-Mobile Note 8s without issue.
In each instance I used the Prince Comsy version of Odin.
So if i don't care about Samsung pay do I care of Knox is tripped? I just want AOSP on this stupid note 88
As long as your phone is unlocked meaning it takes any sim card then flashing say BTU firmware which is Samsung own international unlocked version then it will be fine and Knox will not be triggered as it's stock firmware. But big thing make sure your phone is unlocked and not carrier branded locked to a specific network because I understand it will brick your device. Always allow oem unlocking in developer options.
Where can I find Factory Unlocked Firmware for S10? I want my Sprint S10 to Work just like a factory unlocked S10 that comes if you buy from Samsung.com? Please help.
Spacechemistry said:
Where can I find Factory Unlocked Firmware for S10? I want my Sprint S10 to Work just like a factory unlocked S10 that comes if you buy from Samsung.com? Please help.
Click to expand...
Click to collapse
www.sammobile.com goto firmware section and look for your model (eg. SM-G97*U1).
www.updato.com search for your model.
Download samfirm.exe or the Frija app and odin and use either samfirm.exe or frija to download your firmware. Then use odin to install firmware.
This is a Note 8 forum so look at the s10 forum for a guide to go from SM-G97*U to SM-G97*U1 .

Convert Verizon Note 9 to AT&T Note 9

Is it possible to convert via firmware update a Verizon sim unlocked N960U to fully branded AT&T N960U to get wifi calling and all the other branded features from AT&T? Right now I am using AT&T sim but when my device boots up it shows Verizon and all the Verizon stuff is there. Thoughts.....
playboy71322 said:
Is it possible to convert via firmware update a Verizon sim unlocked N960U to fully branded AT&T N960U to get wifi calling and all the other branded features from AT&T? Right now I am using AT&T sim but when my device boots up it shows Verizon and all the Verizon stuff is there. Thoughts.....
Click to expand...
Click to collapse
I believe it is. It's a couple of threads on XDA talking about changing firmwares.
ahenderson223 said:
I believe it is. It's a couple of threads on XDA talking about changing firmwares.
Click to expand...
Click to collapse
Thanks I figured it out.
Just in case someone stumbles on this thread I will post the solution.
You will need to flash the US Unlocked version of the phone then flash which ever carrier you want.
Just for clarification purposes, are you saying that once you flash the ATT firmware onto a Verizon device that all ATT functions work? Or did you have to also provision the IMEI to achieve this as well.?
Sent from my SM-N960U1 using Tapatalk
playboy71322 said:
Is it possible to convert via firmware update a Verizon sim unlocked N960U to fully branded AT&T N960U to get wifi calling and all the other branded features from AT&T? Right now I am using AT&T sim but when my device boots up it shows Verizon and all the Verizon stuff is there. Thoughts.....[/QUOi think so
Click to expand...
Click to collapse
mazzenn said:
playboy71322 said:
Is it possible to convert via firmware update a Verizon sim unlocked N960U to fully branded AT&T N960U to get wifi calling and all the other branded features from AT&T? Right now I am using AT&T sim but when my device boots up it shows Verizon and all the Verizon stuff is there. Thoughts.....[/QUOi think so
Click to expand...
Click to collapse
sorry for the late reply. But I was able to achieve everything working on my device now. Brief description of what I did to get everything to work:
1. flash unlocked firmware
2. flash att firmware (not unlocked)
3. put sim in another AT&T branded phone
4. Call AT&T have them activate and provision everything on account as normal
5. Put sim in note 9 and activate wifi calling feature
6. DONE you now have a fully fuctional AT&T device, I even got an update from their servers.
I can go into more detail of the steps if needed.
Click to expand...
Click to collapse
AT&T firmware Note 9 N960F/DS Exynos version
​
playboy71322 said:
mazzenn said:
sorry for the late reply. But I was able to achieve everything working on my device now. Brief description of what I did to get everything to work:
1. flash unlocked firmware
2. flash att firmware (not unlocked)
3. put sim in another AT&T branded phone
4. Call AT&T have them activate and provision everything on account as normal
5. Put sim in note 9 and activate wifi calling feature
6. DONE you now have a fully fuctional AT&T device, I even got an update from their servers.
I can go into more detail of the steps if needed.
Click to expand...
Click to collapse
I am looking for the AT&T firmware. I am currently in Kuwait and destroyed my phone. I had to buy an unlocked Note 9 version with the exynos cpu. The problem is I can't WIFI call or use any of the Volte functions my other phone had. Does anyone have the firmware for AT&T? Will that only work with snapdragon? I have already rooted this phone and it is ready to go. I need these functions so I can call back to the States.
Click to expand...
Click to collapse
This may be of help (instructions for all US Carriers apply) :
https://forum.xda-developers.com/galaxy-note-9/how-to/note-9-n960fd-dual-sim-csc-change-oxm-t3841000
Haven’t used it myself, so, if you have any questions, check with the OP & others who've posted in that thread.
Sent from my SM-N960U using XDA Labs
KOLIOSIS said:
I am looking for the AT&T firmware. I am currently in Kuwait and destroyed my phone. I had to buy an unlocked Note 9 version with the exynos cpu. The problem is I can't WIFI call or use any of the Volte functions my other phone had. Does anyone have the firmware for AT&T? Will that only work with snapdragon? I have already rooted this phone and it is ready to go. I need these functions so I can call back to the States.
Click to expand...
Click to collapse
This may be of help (instructions for all US Carriers apply) :
https://forum.xda-developers.com/galaxy-note-9/how-to/note-9-n960fd-dual-sim-csc-change-oxm-t3841000
Haven’t used it myself, so, if you have any questions, check with the OP & others who've posted in that thread.
Sent from my SM-N960U using XDA Labs[/QUOTE]
Thanks for the quick reply. It looks like I need to wait for Detonator to come out with the AT&T zip. It says coming soon so hopefully soon is in the next couple of weeks. That looks like the best route to go. This is the first phone I have ever rooted. I work with networks and sometimes software kicks me in the butt!
Manny10 said:
Thanks for the quick reply. It looks like I need to wait for Detonator to come out with the AT&T zip. It says coming soon so hopefully soon is in the next couple of weeks. That looks like the best route to go. This is the first phone I have ever rooted. I work with networks and sometimes software kicks me in the butt!
Click to expand...
Click to collapse
Since this will be the 1st phone you'll have rooted, be aware that, especially with Samsung devices, there's a couple of trade-offs that aren't reversible:
1) Samsung Pay will never work even if you unroot.
2) Knox features (I believe) are also a casualty.
There's an e-fuse, for lack of a better word, that once tripped on Samsung devices, cannot be reset. That's why even if you restore the phone to its original condition, those things will be permanently gone.
Sent from my SM-N960U using XDA Labs
playboy71322 said:
mazzenn said:
sorry for the late reply. But I was able to achieve everything working on my device now. Brief description of what I did to get everything to work:
1. flash unlocked firmware
2. flash att firmware (not unlocked)
3. put sim in another AT&T branded phone
4. Call AT&T have them activate and provision everything on account as normal
5. Put sim in note 9 and activate wifi calling feature
6. DONE you now have a fully fuctional AT&T device, I even got an update from their servers.
I can go into more detail of the steps if needed.
Click to expand...
Click to collapse
I have unlocked AT&T Note 9 but I want to use it on Verizon. I wonder if apply above steps with Verizon will work?
1. flash unlocked firmware
2. flash Verizon firmware (not unlocked)
3. put sim in another Verizon branded phone
4. Call Verizon have them activate and provision everything on account as normal
5. Put sim in note 9 and activate wifi calling feature
Click to expand...
Click to collapse
KOLIOSIS said:
Since this will be the 1st phone you'll have rooted, be aware that, especially with Samsung devices, there's a couple of trade-offs that aren't reversible:
1) Samsung Pay will never work even if you unroot.
2) Knox features (I believe) are also a casualty.
There's an e-fuse, for lack of a better word, that once tripped on Samsung devices, cannot be reset. That's why even if you restore the phone to its original condition, those things will be permanently gone.
Sent from my SM-N960U using XDA Labs
Click to expand...
Click to collapse
Thanks for the info. I read up on all of that and the trade off is worth it. I just need all the Volte features and hopefully the correct frequencies for the U.S. I had a note 3 forever and it got destroyed. I loved that phone. This Note 9 is awesome but without being able to manipulate the IMS settings it is a PITA. I just want to be able to call home from time to time. Emailing the wife is no fun especially with the tech available today. I will keep an eye out for Detonator to provide the AT&T CSCs and all that fun stuff. Then this phone will officially be outstanding. I do have to admit that the rooting process was fun. I am all about modified anything. Stock sucks. LOL
Hugo_US said:
playboy71322 said:
I have unlocked AT&T Note 9 but I want to use it on Verizon. I wonder if apply above steps with Verizon will work?
1. flash unlocked firmware
2. flash Verizon firmware (not unlocked)
3. put sim in another Verizon branded phone
4. Call Verizon have them activate and provision everything on account as normal
5. Put sim in note 9 and activate wifi calling feature
Click to expand...
Click to collapse
Im not a phone guru like others on here. But from my experience that is all I did. A really important step I didn't mention is leave the cable PLUGGED IN when you flash the unlocked software then the locked software. This caused my device to read the "sim info" and provision its self for ATT and get rid of the verizon stuff and install the ATT stuff. Hope this helps you out.
Click to expand...
Click to collapse
Can someone please post a link to the unlocked firmware for this phone? Im trying to convert a Verizon Note 9 to T-MO
Phonebricker said:
Can someone please post a link to the unlocked firmware for this phone? Im trying to convert a Verizon Note 9 to T-MO
Click to expand...
Click to collapse
Try this after root with TWRP.
http://tekhd.com/detonator/
Manny10 said:
Try this after root with TWRP.
http://tekhd.com/detonator/
Click to expand...
Click to collapse
if he has the verizon note 9 he cant root it or use twrp
Phonebricker said:
Can someone please post a link to the unlocked firmware for this phone? Im trying to convert a Verizon Note 9 to T-MO
Click to expand...
Click to collapse
I flashed the us factory on my note 9 from Verizon. I have LTE voice and wifi calling. Didn't trip Knox. No root required. Any particular reason you want tmobile firmware?
Droidguy816 said:
I flashed the us factory on my note 9 from Verizon. I have LTE voice and wifi calling. Didn't trip Knox. No root required. Any particular reason you want tmobile firmware?
Click to expand...
Click to collapse
Because my carrier is T-Mobile and my Note 9 came from Verizon. Can you provide a link to the factory firmware? Im hoping to flash to factory unbranded, then flash to t-mobile so I can use my video calling.
Thanks for any help
Phonebricker said:
Can someone please post a link to the unlocked firmware for this phone? Im trying to convert a Verizon Note 9 to T-MO
Click to expand...
Click to collapse
Phonebricker said:
Because my carrier is T-Mobile and my Note 9 came from Verizon. Can you provide a link to the factory firmware? Im hoping to flash to factory unbranded, then flash to t-mobile so I can use my video calling.
Thanks for any help
Click to expand...
Click to collapse
I'm also on tmobile. You need to remove your google account from the settings menu to turn off FRP lock in download mode. (You cant flash while its on)
This page helped me. Tks NICEGYPT
Stock US

Can I flash Sprint S10+ to look like unlocked version direct from Samsung?

My dilemma. I purchased a S10+ unlocked from Samsung.com and I use it on the Sprint network. I am having data/cell problems like a lot of others are having. Samsung refuses to fix or replace the phone saying it will be fixed with an update. Sprint says they will replace my phone but it would be the Sprint version. If i do the replacement with Sprint can I later flash the U1 making it act like the unlocked version? No carrier bloat?
wraptor said:
My dilemma. I purchased a S10+ unlocked from Samsung.com and I use it on the Sprint network. I am having data/cell problems like a lot of others are having. Samsung refuses to fix or replace the phone saying it will be fixed with an update. Sprint says they will replace my phone but it would be the Sprint version. If i do the replacement with Sprint can I later flash the U1 making it act like the unlocked version? No carrier bloat?
Click to expand...
Click to collapse
Service issues with T Mobile and Sprint are known. Neither have been addressed since release. As for your question, yes, it's possible to convert a U SPR to U1 XAA (and vice versa). You will lose data following the use of non Home CSCs in Odin.
You can technically preserve all data, but it's strongly recommended to follow the steps as they're written.
E: firmware is here https://forum.xda-developers.com/galaxy-s10/how-to/s10e-g973u-g973u1-firmware-links-t3905852
You can also use Samfirm and other places.
Ace42 said:
Service issues with T Mobile and Sprint are known. Neither have been addressed since release. As for your question, yes, it's possible to convert a U SPR to U1 XAA (and vice versa). You will lose data following the use of non Home CSCs in Odin.
You can technically preserve all data, but it's strongly recommended to follow the steps as they're written.
E: firmware is here https://forum.xda-developers.com/galaxy-s10/how-to/s10e-g973u-g973u1-firmware-links-t3905852
You can also use Samfirm and other places.
Click to expand...
Click to collapse
Thank you for verifying this!
wraptor said:
Thank you for verifying this!
Click to expand...
Click to collapse
No prob. I converted my Tmobile N8 950U to U1. Bought an unlocked U1 S10+ so no need this time around.
I have the sprint variant as well of the s10. Would flashing this sim unlock the phone?
No
kennymase said:
I have the sprint variant as well of the s10. Would flashing this sim unlock the phone?
Click to expand...
Click to collapse
Nope. You're only changing the firmware on the phone, you're not unlocking anything.

Force device to update carrier settings SM-G781U

Hello, I'm not a developer; I've never dealt with a rooted device, but Google, Samsung, Verizon and other sources were no help, so I'm here now.
I got a Samsung S20 FE from my old workplace which was previously locked to the ATT network. I am a Verizon customer so I wanted to switch over and I purchased an unlock code from cellunlocker.net. I've reached out to Cellunlocke, but they say the unlock was successful as it is connecting to the VZW network.
I did a factory reset on the phone, put in the Verizon Sim card, and used the network unlock code provided. The unlock said it was successful, but the phone powered on with the ATT logo and downloaded all the ATT factory apps. When I go into the phone dialer settings, it shows ATT video calling, etc... The phone software version shows ATT in the service provider sw version. But it makes calls, texts, etc. and the network settings show it's connected to VZW. The problem is, that it can't access my voicemail or use wifi calling because it's set with the ATT apps and features.
I've tried removing the sim, power cycling, factory resetting, even calling Verizon and asking them to resync the phone to the network. When the sim card is installed in the new phone, VZW shows the S20 as my device, but the phone still thinks it is on the ATT settings. I've viewed the Service Menu *#0011# and it shows that the phone is unlocked.
The phone is showing a service provider software version of
SAOMC_SM-G781U_OYN_ATT_12_0012
ATT/ATT/ATT
Is there any way to force the phone to reset its carrier settings or service provider software? Also, please keep it somewhat simple; I'm learning but not an expert here!
about the only wise thing you can do is download and XAA U1 firmware (Samsung non carrier firmware) flash that with Odin and call it good.
you're getting what you're seeing because the phone won't be able to switch to Verizon firmware as Verizon actually have their own unique version of the FE SM-G781V I believe with physical differences for Verizon's mmwave 5G and the U model can't reset itself to that.
3mel said:
about the only wise thing you can do is download and XAA U1 firmware (Samsung non carrier firmware) flash that with Odin and call it good.
you're getting what you're seeing because the phone won't be able to switch to Verizon firmware as Verizon actually have their own unique version of the FE SM-G781V I believe with physical differences for Verizon's mmwave 5G and the U model can't reset itself to that.
Click to expand...
Click to collapse
So which firmware version do I need? The model printed on the phone is SM-G781u. SamMobile has 781O, B, U, U1, and V for the 781 model.
I'd love to have it without the bloatware Verizon installs, but I need Wifi calling to work and it seems to be a setting in the dialer, rather than the phone.
tbrou6229 said:
So which firmware version do I need? The model printed on the phone is SM-G781u. SamMobile has 781O, B, U, U1, and V for the 781 model.
I'd love to have it without the bloatware Verizon installs, but I need Wifi calling to work and it seems to be a setting in the dialer, rather than the phone.
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flashing V would be a bad idea, 5G wouldn't work, at least not well. so that leaves U1 which is Samsung unbranded, no carrier apps at all.
3mel said:
flashing V would be a bad idea, 5G wouldn't work, at least not well. so that leaves U1 which is Samsung unbranded, no carrier apps at all.
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Ok thank you, I'll give it a shot
3mel said:
flashing V would be a bad idea, 5G wouldn't work, at least not well. so that leaves U1 which is Samsung unbranded, no carrier apps at all.
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I'm looking at the instructions for flashing the device and the instructions say to turn on OEM Unlocking in developer options. I've activated developer options and USB debugging, but do not have the option to turn on OEM Unlocking.
I can't seem to find a way to unlock the bootloader.
tbrou6229 said:
I'm looking at the instructions for flashing the device and the instructions say to turn on OEM Unlocking in developer options. I've activated developer options and USB debugging, but do not have the option to turn on OEM Unlocking.
I can't seem to find a way to unlock the bootloader.
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to the best of my knowledge you don't need to be unlocked in order to flash signed, official Samsung firmware. many Americans have cross-flashed their phones and none of them could unlock either.
you're just booting into download and opening Odin, it's not much more than that.
3mel said:
to the best of my knowledge you don't need to be unlocked in order to flash signed, official Samsung firmware. many Americans have cross-flashed their phones and none of them could unlock either.
you're just booting into download and opening Odin, it's not much more than that.
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Awesome, a flash using ODIN seems to have worked; the phone is active and not showing any carrier apps or splash screen. I'm having some other issues; can you suggest which firmware combo would be best?
I used Sammobile.com SM-G781U1 with Country Code USA (Verizon) (VZW)
OR I also downloaded Frija SM-G781U1 with CSC of XAA
Will I notice any major differences in them, or just try each one and check it out?
I am in the US, using the Verizon network. We do not have 5g in the area but the phone and our verizon plan is 5G capable and I would like the option if it exists somewhere I travel to.
I am in the UK, I shouldn't be telling you anything about what firmware is gonna be best over there.
other than U1 XAA I can't tell you much. also be aware that generally you can never downgrade your firmware unless it has the same bootloader version as what you're currently using...
if we were looking at my firmware version number G781BXXU4FVE6
I can only flash something that has a matching 5th last character, that's a 4 in this case. I can only download and flash older firmware if it also has a 4 in the same place in the build number. the phone won't accept anything else.
Sammobile is good for seeing what firmware exists but it's terrible for download speeds. I use Frija mainly but that only gives me the latest version nothing historical.
@3mel thank you for all your help! I've got this device working well on the U1 software and didn't have to reflash it; the rest of my issues resolved. Thanks for your patience in helping this newbie do things to a phone I never would have attempted otherwise!

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