Need help finding right firmware for AT&T - Samsung Galaxy S9+ Questions & Answers

Just got a new unlocked phone. Baseband Version is G965U1UES6CSG4
I'd like to flash it to the AT&T rom so that I can use WiFi calling, etc. I have AT&T sim in the phone that I pulled from my Nexus 6.
I'd also like to be able to get OTA updates if possible.
Can somebody point me at the right files ? I have Odin ready to go.
Thanks !

Related

Bell Official ICS on AT&T I717

I have a AT&T I717, but don't like the AT&T ICS since I cannot use tethering with Bell network. I am not sure if there is any chance to install Bell official ICS on it. I tried Kies on download mode, but if I input my sn and model number SGH-I717M, it always pops up an error message. I am not sure if the OTA works. Do you guys have similar experiences? Thanks.
shaodx said:
I have a AT&T I717, but don't like the AT&T ICS since I cannot use tethering with Bell network. I am not sure if there is any chance to install Bell official ICS on it. I tried Kies on download mode, but if I input my sn and model number SGH-I717M, it always pops up an error message. I am not sure if the OTA works. Do you guys have similar experiences? Thanks.
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If you have a AT&T i717 chances are you will not get office Bell ICS. There are a few way of getting tethering to work, BTW.
1) Flash official AT&T ICS, use tethering app like FoxFi
2) Flash official AT&T ICS, root it, use hacks such as Ultracfg trick
3) obviously, flash custom ROMs
4) Wait until devs use Canadian ROMs as base*
* P.S. Not seeing that happen soon though since folks already on LF5 or LF6 but Canadian ROMs (at least for Bell) is only on LF4.
You can use TELUS Stock ICS;
http://forum.xda-developers.com/showthread.php?t=1771979
There is NO carrier bloat at all on TELUS ICS.
Much appreciated, guys. I will try the Telus ROM first.
After using odlin to flash boot and system, system halts on Telus LTE page.
No idea if it's caused by AT&T modem because I did not flash it yet.
Anyway, go back to AT&T official ROM and use FoxFi now.

You can help get Nougat OTA update to lot of people!!!

Hi, guys!
To all who runs AT&T M9 Firmware Locked to AT&T.
A lot of people can't run Nougat, bacause AT&T didn't want to share update signature key outside AT&T network. If you are not in US, you can't get Nougat update.
Does anyone have activated AT&T sim? Just flash your M9 by latest MM firmware. But before Make backup of your data, phone became clean!!!
What to do:
1. Flash file: 0PJAIMG_HIMA_UL_M60_SENSE70_ATT_MR_Cingular_US_3.38.502.41.zip
2. Use method 2 to grab OTA download link as shown here https://forum.xda-developers.com/sho...75&postcount=2
3. Post here result to share with others
Thanks for help!
Hey
vladifua said:
Hi, guys!
To all who runs AT&T M9 Firmware Locked to AT&T.
A lot of people can't run Nougat, bacause AT&T didn't want to share update signature key outside AT&T network. If you are not in US, you can't get Nougat update.
Does anyone have activated AT&T sim? Just flash your M9 by latest MM firmware. But before Make backup of your data, phone became clean!!!
What to do:
1. Flash file: 0PJAIMG_HIMA_UL_M60_SENSE70_ATT_MR_Cingular_US_3.3 8.502.41.zip
2. Use method 2 to grab OTA download link as shown here https://forum.xda-developers.com/sho...75&postcount=2
3. Post here result to share with others
Thanks for help!
Click to expand...
Click to collapse
Can you PLEASE share the file to flash MM?
Yes! Download it here!
https://androidfilehost.com/?fid=961840155545568681
Hope you know how to flash it.
vladifua said:
Yes! Download it here!
https://androidfilehost.com/?fid=961840155545568681
Hope you know how to flash it.
Click to expand...
Click to collapse
Can you give me a quick tutorial? my phone is:
s-on
Unlocked
firmware: 2.11.502.21
If you have AT&T card, just use OTA update. I don't know all things how to update from Lollipop. Plase read Readme thread.
Anyone found the OTA url yet? I restored to stock, but it says no update available. RUU isn't an option since you can't go from 3.x to 4.x.

Super confused with move from U1 (unlocked) to AT&T so I can get wifi calling, etc

Super confused with move from U1 (unlocked) to AT&T so I can get wifi calling, etc
Just got a new unlocked phone. Baseband Version is G965U1UES6CSG4
I'd like to flash it to the AT&T rom so that I can use WiFi calling, etc. I have AT&T sim in the phone that I pulled from my Nexus 6.
I'd also like to be able to get OTA updates if possible.
Can somebody point me at the right files ? I have Odin ready to go.
Thanks !

G965USQS3ARG8 - Need help with ATT S9+

Hello,
I need help with my S9+ from ATT. It is still stuck at Android 8.0. I am no longer with ATT and am no longer in the US (Asia now). When i try to do a software update on my phone, it says it is already on the latest update.
How am I able to get the latest update? I have yet to try Odin as I am new to it and am scared that it will brick my phone. Is there any firmware and guide on how to put it to my phone? If successful updated to android9.0, how am i going to get oneUI and subsequent updates?
Is it also possible to make my att phone into a phone that is directly bought from samsung store? So that I am able to get updates directly from samsung?
Please advise. Thanks.
Regards
samysam1 said:
Hello,
I need help with my S9+ from ATT. It is still stuck at Android 8.0. I am no longer with ATT and am no longer in the US (Asia now). When i try to do a software update on my phone, it says it is already on the latest update.
Click to expand...
Click to collapse
How am I able to get the latest update? you dont outside of at&t without manually flashing it in odin
I have yet to try Odin as I am new to it and am scared that it will brick my phone. its not likely that you will
Is there any firmware and guide on how to put it to my phone? Many many many many many
If successful updated to android9.0, how am i going to get oneUI and subsequent updates? yes
Is it also possible to make my att phone into a phone that is directly bought from samsung store? So that I am able to get updates directly from samsung? not lkely

Question AT&T Base Firmware needed for A526U

Hello, looking for some help to see if anyone can help me find the firmware of my A526U specifically for AT&T? I have moved my phone over from TMobile where I purchased it from, and am looking to re-flash it to AT&T. Was working fine for a few months, now I'm no longer able to make or receive calls.
After inserting the new AT&T SIM card, the TMobile splash screen still shows up. The Service Provider software version reflects TMobile still as well and I'm concerned that for whatever reason the phone did not fully update after inserting the new SIM. I spent 2 hours on the phone with AT&T support after the store said they couldn't help me. Pulled the SIM card out, restarted phone, put it back in, reset network settings etc. I've searched sammobile and I cannot find the AT&T firmware, only TMobile, Sprint, and TMK. I would sincerely be greateful please if anyone could help me by pointing me in the right direction for the firmware for this model phone.
AT&T doesn't make their firmware available publicly - for any device. I have a source who can get me Samsung firmware for any USA device - even AT&T. But he charges me for each one
I appreciate the quick response! Is there any option I have here? Could I try flashing a "U1" firmware to his phone then? He's currently on A526USQS4CVA6. I actually found your other post as I was also working on my note 10 plus - https://forum.xda-developers.com/t/n975u-and-n975u1-firmware-links-here.3957648/. If I'm reading that correctly, I should be able to correct? If so, how can I tell if the version I'm downloading is "downgrading the bootloader"
aschaffer35 said:
I appreciate the quick response! Is there any option I have here? Could I try flashing a "U1" firmware to his phone then? He's currently on A526USQS4CVA6. I actually found your other post as I was also working on my note 10 plus - https://forum.xda-developers.com/t/n975u-and-n975u1-firmware-links-here.3957648/. If I'm reading that correctly, I should be able to correct? If so, how can I tell if the version I'm downloading is "downgrading the bootloader"
Click to expand...
Click to collapse
1. Yes, you can try flashing U1 if you want
2. You can't "downgrade the bootloader" - Odin won't let you.
3. In A526USQS4CVA6, "4" is the position of the bootloader level/revision/binary. Make sure that whatever U1 firmware you download also has a 4 in that spot and you'll be fine. (Or just get the firmware from Frija or one of the other similar firmware download tools, because those throw you whatever the newest version is automatically)
iBowToAndroid said:
1. Yes, you can try flashing U1 if you want
2. You can't "downgrade the bootloader" - Odin won't let you.
3. In A526USQS4CVA6, "4" is the position of the bootloader level/revision/binary. Make sure that whatever U1 firmware you download also has a 4 in that spot and you'll be fine. (Or just get the firmware from Frija or one of the other similar firmware download tools, because those throw you whatever the newest version is automatically)
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Click to collapse
Thank you very much sir! I shall give this a go this weekend! You guys rock!
My AT&T N10+ N975U is running on Pie. It transitioned seamlessly with no changes made on my end. It was already using 4G VoLTE though. Same sim card.
I would contact AT&T advanced tech support as there may be an easier way.
4G VoLTE needs to be enabled in hidden settings.
blackhawk said:
My AT&T N10+ N975U is running on Pie. It transitioned seamlessly with no changes made on my end. It was already using 4G VoLTE though. Same sim card.
I would contact AT&T advanced tech support as there may be an easier way.
4G VoLTE needs to be enabled in hidden settings.
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Your AT&T phone? So it's originally an AT&T model that you're still using with them? That's not the same situation that the OP is in
iBowToAndroid said:
Your AT&T phone? So it's originally an AT&T model that you're still using with them? That's not the same situation that the OP is in
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The U is the AT&T variant vs the U1 which is the unlocked variant, correct?
blackhawk said:
The U is the AT&T variant vs the U1 which is the unlocked variant, correct?
Click to expand...
Click to collapse
Yup. But OP has a T-Mobile model that they moved to AT&T. There's also no guarantee that a Note 10+ will work the exact same way as an A52. You're also running 3 year old firmware, while OP is fully updated.
So i don't see the correlation.
iBowToAndroid said:
Yup. But OP has a T-Mobile model that they moved to AT&T. There's also no guarantee that a Note 10+ will work the exact same way as an A52. You're also running 3 year old firmware, while OP is fully updated.
So i don't see the correlation.
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Click to collapse
The old firmware works fine on 4G VoLTE... that's likely not the issue. What is the issue is it wasn't running on 4G VoLTE so it's likely the settings and sim card need updating not the firmware.
Hi All, thought I would provide an update... After spending hours on the phone with AT&T support this week and being frustrated with the AT&T store, I decided to proceed forward with flashing the U1 version. What started this all was last week my son could no longer make or receive calls on his AT&T A52 phone (we ported it from TMobile September 2021). The store and AT&T advanced tech support said there were issues with people's BYOD devices, even though the A526U and A526U1 shows on the supported devices list. The store rep said he's been getting people in left and right that can't make or receive calls, and all they can do is upsell customers to an AT&T branded phone.
SO... my son's phone was on A526USQS4CVA6. Startup screen showed TMobile still, even with the AT&T SIM card in it. I proceed to flash the A526U1OYM4CVB2_ATT that I found from Sammobile. Was hoping someone had just the "U" version but I couldn't find this anywhere. When doing the flash, I used the Home_CSC file (I had to download a patched version of ODIN as it was stuck as setting up connection) and when it finished it would just keep going back to the download screen on the phone and I freaked out. I did some more research and decided to flash again using CSC instead of Home.CSC (I did a backup using smart switch on my PC luckily). This WORKED! I'm guessing because the software version he was on was different than what I was trying to flash too so maybe this is why I needed the CSC for a clean flash (there was no user data file that downloaded from SAMMOBILE).
Now, calls are working on my son's phone again! AND his service provider software version now reflects ATT vs TMB! Man this has been one heck of a journey lol. I've seen numerous forums on google of people having the same trouble with me, their BYOD devices not working. Seems a flash of U1 worked for me, so hopefully this helps others out there!

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