yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S7 Questions & Answers] micallan_17:
I don't think you can currently flash the SM-G930U firmware to the SM-G930T because the T has a bootloader version of 3 while the U has a bootloader of version 2. When samsung updates the U to bootloader version 3, it will allow us to flash the SM-G930U firmware to the SM-930T.

Regarding wifi calling am not entirely sure if native wifi calling is enabled on the SM-G930U firmware when you use a t mobile sim on it. Per thread over at AC, a few commenters said it worked out of the box. http://www.androidcentral.com/galaxy-s7-unlocked
[AT&T Samsung Galaxy S7 Questions & Answers] justforgot:
Question guys. I have ATT s7e and it's sim locked. Wondering if i flash T-mobile Rom and will be unlocked then? Or i need to purchase the sim unlock and then i should flash t-mobile rom. My carrier is tmo but currently s7 edge is locked.

Any help is appreciated.
[AT&T Samsung Galaxy S7 Questions & Answers] aromerblz:
Unlock first then flash.
[AT&T Samsung Galaxy S7 Questions & Answers] ctalbot:
I too have an AT&T S7 edge (SM-935A) and recently switched to T-mobile as my carrier. I had to unlock it first so I used the service from unlockunit. It took almost a day for the code but I was then able to pop my T-mobile SIM and sure enough, it worked. Surprisingly, WIFI calling even worked!

At this point, I really wanted to switch to the 935U firmware as I heard it has great battery life as all the carrier bloat is removed. Unfortunately, just before I switched, the recent September update from AT&T raised the bootloader to v4. I learned after the fact you have to disable the update service as it eventually will force you to update. Now I was stuck with the damn AT&T firmware!

I wanted to flash the 935U firmware but the bootloader was still at v2 and T-mobile, so I thought, was at v3. It might be helpful to have a sticky on this forum with the current bootloader versions as it took some time for me to research the following:

AT&T - v4

T-mobile - v4

Verison - v4

Sprint - v2?

Universal - v2

Yes, you read that right, T-mobile just released a new firmware (PIA) which raised their bootloader to v4! You can grab it here: http://www.sammobile.com/firmwares/database/SM-G935T/

It's the one with the date of 2016-09-27. I used the prince odin version referenced in this thread for flashing as others failed and gave sha1 errors. http://xdaforums.com/verizon-s7-edge/how-to/root-guide-verizon-s7-s7-edge-sm-g930v-t3411015

If you plan to do this please research how to flash with odin and remember to back everything up! Samsung Smart Switch is a great resource for this.

I've been running on the new T-mobile firmware for just a day but already like it better than AT&T's. I didn't even know AT&T disabled some features of the S7 edge that other carriers kept. Typical for the Deathstar. Can you sense my disdain for AT&T?

For example, with the T-mobile firmware, you can control Download booster (the ability to leverage wifi and LTE simultaneously!) This option was removed from the AT&T firmware. In addition, you can set a preference to WiFi calling. With the AT&T firmware, you have no control and it will only flip to WiFI when in a weak area. It just so happens where I live the AT&T signal is weak so I was always jumping back and forth between the two and it was frustrating not being able to control it. The only way to force WiFi calling is turn on airplane mode when in a fringe area and turn WiFI back on. I'm so glad I don't have to deal with that anymore.

I'm including some screenshots which shows the current firmware running on my SM-935A. Good luck!
[AT&T Samsung Galaxy S7 Questions & Answers] justforgot:
Can someone tell me which version i'm on.

I'm on ATT

Android Patch level - May 1 2016

Baseband - G935AUCS2APE1

Please.
[AT&T Samsung Galaxy S7 Questions & Answers] aromerblz:
That's likely v2 bootloader.
[AT&T Samsung Galaxy S7 Questions & Answers] justforgot:
Thank you. I've flashed v4 of t-mobile i think. Since the U version kept giving me error for usb moisture.
[AT&T Samsung Galaxy S7 Questions & Answers] jpcdeux:
WiFi calling says Invalid SIM on AT&T but so far seems little smoother and faster
[AT&T Samsung Galaxy S7 Questions & Answers] justforgot:
Just got a question it possible to get root on the latest v4 of tmobile to get a root? i couldn't anywhere the eng thing didn't work for me.

Would appreciate any opinions if anybody got it figured out.
[AT&T Samsung Galaxy S7 Questions & Answers] Talal916:
Hey, I'm not exactly understanding the negative consequences of flashing a T-Mobile ROM to an AT&T S7. It doesn't trip KNOX? You don't have to unlock bootloader or root? Just straight flash T-Mo ROM? What software do we have to use to flash with and where can I get my hands on the latest T-Mobile ROM for the S7 (non-edge).
[AT&T Samsung Galaxy S7 Questions & Answers] kuduku:
1. No negative consequences, try out the T-mobile firmware

2. Doesn't trip Knox

3. Use Odin to flash, don't flash Bootloader that is leave BL empty. With this you can downgrade also from API3

4. Download from sammobile or updato.com. Search for 930T for T-mobile firmware
[AT&T Samsung Galaxy S7 Questions & Answers] T10NAZ:
I have a verizon s7 edge.. could I theoretically odin to a GSM firmware? 75 dollars for 4gb is absurd
[AT&T Samsung Galaxy S7 Questions & Answers] Talal916:
Thanks bro! You know which version of Odin to use? I'm on 3.12.3 and it's giving me invalid sha md5 error. File is fine. Other guy mentioned Odin from Verizon thread. Couldn't find it

Edit: Found it! It's PrinceComsy Odin 3.12. It worked perfectly! However, now my fingerprint sensor doesn't work. Is that because I didn't flash bootloader? If I flash just bootloader, will it still wipe the system?

Edit 2: Goddamnit Samsung Pay isn't working either. Says I made unauthorized modifications.

Final Edit: So apparently you have to flash Bootloader as well to get Samsung Pay and fingerprint sensor to work.

Basically, Download PrinceComsy's 3.12 Odin from Verizon Root thread. Then flash the latest G930T ROM from SamMobile. Tick BL, AP, CP, AND CSC. Make sure you ran Odin with admin privileges. It'll wipe internal SD so back that up.
[AT&T Samsung Galaxy S7 Questions & Answers] curlynerd:
So will you get TMobile updates now? I'm in the same boat.
[AT&T Samsung Galaxy S7 Questions & Answers] moef11223:
Hello,

I currently have an unlocked G930A that is running on 7.0, I am using the T-Mobile carrier and I would like to flash to the T-Mobile rom. I know it was possible on marshmallow but I couldn't find any posts regarding 7.0.

If I follow these instructions

But using the 7.0 T-Mobile ROM from sam mobile. (I have made a backup of the device with smart switch.)

Should I be okay?
[AT&T Samsung Galaxy S7 Questions & Answers] co.ag.2005:
Did this work? I'm thinking about doing the same to my G935A. Thanks
[AT&T Samsung Galaxy S7 Questions & Answers] muniz_ri:
Yes, it will work. I am running the latest att 7.0 firmware on my G930T.
[AT&T Samsung Galaxy S7 Questions & Answers] pierre3408:
I'm about to attempt this. Where to I get the correct version of ODIN?

Is there a link to the T-Mobile firmware needed?
[AT&T Samsung Galaxy S7 Questions & Answers] ivanderous55:
What about carrier bands? Switching GSM to CDMA or other way around on these phones? I've read that hardware is basically the same but many features are disabled/limited (radio, tethering) I got g930a and wondering if it's stuck on GSM carriers or if changing firmware will fix my tethering restriction
[AT&T Samsung Galaxy S7 Questions & Answers] ilikebigjugs88:
I tried to flash Tmobile and Samsung factory rom on my S7 from AT&T and would not work in odin v3.11.1 nor odin v3.11.2 nor odin v3.12.1 it had Odin version error or it just hung there and did nothing. I was losing my mind. I tried searching do I need to root or do something special to flash a rom from another carrier ?? Until I found the hash skip version of Odin linked below.

With this version of Odin I was able to successfully install Samsung SM-G930U Android 7.0 Nougat G930UUES4BQG1 ROM onto my AT&T S7, Wifi calling works and Samsung Pay works.

The phone is also very responsive and is functioning very well.

Samsung SM-G930U being the Samsung factory unlocked model rom without all the carriers bloatware.

Samsung SM-G930U Android 7.0 Nougat G930UUES4BQG1 ROM download here https://samsung-firmware.org/download/Galaxy S7/10n9/AIO/G930UUES4BQG1/G930UOYM4BQG1/

Odin3 v3.12 (PrinceComsy) https://www.androidfilehost.com/?fid=24591023225177749
[AT&T Samsung Galaxy S7 Questions & Answers] Asifx7:
Hi. I live in bangladesh so i wont get any otas from at&t nor tmobile. Any suggestions? Is there any way i can get updates in bangladesh? Any rom i can flash to solve this? Thanks.
[AT&T Samsung Galaxy S7 Questions & Answers] ilikebigjugs88:
try using smart switch from samsungs site but what i dont know if smart switch pushes carrier firmware or only

their factory unlocked firmware
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
So I recently flashed a SM-G930A to an SM-G930T so my wife would get full T-mobile features on the phone. The ROM installed and the phone acts like a native T-mobile device with the exception of Samsung-Health. This app won't start stating due to new security policies it doesn't run on rooted devices.

I did flash all 4 files including the BL file when I did the transition to the T-mobile ROM. I am not sure if I should have done this. Anyway the question is: How can I retain the T-mobile ROM but unroot the device?

Thanks,

Paul.
[AT&T Samsung Galaxy S7 Questions & Answers] ElevyNJ:
Can you tell me what rom you downloaded and what version of Odin you used?
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
I used the Odin PrinceComsy version.... http://dl.psouza4.com/android/Odin3_v3.12_PrinceComsy.zip

I loaded the Sammobile.com ROM.... https://www.sammobile.com/firmwares/galaxy-s7/SM-G930T/TMB/download/G930TUVU4BQH7/189003/

Hope this helps.

Paul.
[AT&T Samsung Galaxy S7 Questions & Answers] ElevyNJ:
Thanks. I'm hoping the AT&T one works then I can worry about switching the phone to T-mobile software.
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
Our AT&T galaxy s7 worked fine with T-mobile. We just wanted the wifi calling feature that the T-mobile ROM offers.

Good luck.

Paul.
[AT&T Samsung Galaxy S7 Questions & Answers] ElevyNJ:
No I meant that my AT&T phone was in a boot loop from a bad flash. I had to get AT&T firmware back on to restart the entire process
[AT&T Samsung Galaxy S7 Questions & Answers] SuBDivisions:
Im trying to accomplish this.. I have an AT&T S7 Edge that want to use on MetroPCS, via TMobile Rom.. I downloaded SM-G935T_G935TUVU4BQB1, and am trying PrinceComsy Odim 3.12, so far i havent had any luck with 2 other ODIN's.. I want to flash the BL as well as i want the phone to be fully operational and it will not be rooted. Hopefully this will work.
[AT&T Samsung Galaxy S7 Questions & Answers] kyakubov:
Paul, was your phone rooted when you did that? Or did you flash over un-rooted S7? I have un-rooted AT&T S7 and wasn't sure if i should first root it and flash the rom you referenced.

thanks
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
My S7 was not rooted.

Paul.
[AT&T Samsung Galaxy S7 Questions & Answers] webzo:
Exactly what I am trying, except it didn't work right...

I tried going from a March version of ATT firmware to a November version of TMo firmware.

I ended with an ext4 write error. Some file was too big to write (unfortunately, I didnt capture the exact words). It ended being stuck at boot.

Anyway, I was able to flash again to the June version of ATT firmware and that's where it is now.

So, my question, what version of ATT firmware were you at when you flashed? You have gone to the August version of TMo firmware...

Thanks for your time.
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
To first clarify, it turns out my boot loader remained ATT even though I had selected all 4 files from the TMO to flash. It has worked well for my wife. I don't know which version of ATT we came from.... but her phone always updated immediately. We did this in ~Oct/Nov. I believe I used the August version of the TMO firmware as well.

Paul.
[AT&T Samsung Galaxy S7 Questions & Answers] webzo:
Thanks.

So, you choose all 4 files, yet the bootloader did not change....sounds strange, but what do I know....

Maybe I will try going to the ATT version closest to Oct/Nov and go the August TMo version from there and see how that goes... although, I am tempted to go to 930U...

---------- Post added at 02:09 AM ---------- Previous post was at 01:58 AM ----------

Sorry, another question- I understand one has to enable debugging mode on the phone. Did you have to change the "OEM unlock" option too?

How about (under "Options" tab in ODIN)

F.reset time

Auto reboot

Re-partition

I see some references to that in Sammobile- https://www.sammobile.com/forum/showthread.php?t=30800

Thanks for your time,,,
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
From my reading after flashing the firmware since the bootloader is locked on the ATT phones it will not load. You can omit this file from the process and just flash the other 3 files.

I do recall turning on the debugging.... I don't recall changing the OEM lock.... but might have.

Paul.
[AT&T Samsung Galaxy S7 Questions & Answers] webzo:
Oh, I didn't realize that... everyplace I read about kept referring to the 4 files. Let me try that with 3...

Did you use PrinceComsy or another Odin? If another, version#, please?
[AT&T Samsung Galaxy S7 Questions & Answers] schultp:
I used the PrinceComsy version.

Paul
[AT&T Samsung Galaxy S7 Questions & Answers] webzo:
Ok, that worked. Went from G930AUCS4BQE1 (ATT, June-2017) to G930TUVS4BQL2.

I was going to update just the 3 files but mistakenly updated the bootloader too... but it didn't seem to matter.

Used PrinceComsy. I had tried this previously too, but it somehow complained about "Volume size too big" error.

And then I realized that I hadn't done a factory reset after moving the phone from ATT to TMo. Did that and tried again and it worked.

Had debugging enabled on the phone and also OEM unlock was checked (another option). Re-partition was not enabled on Odin.

Thanks for the assist.
[AT&T Samsung Galaxy S7 Questions & Answers] scotty-k:
I'm trying to do this with Oreo. Not havin much luck.
[AT&T Samsung Galaxy S7 Questions & Answers] chetgizzile:
please help

i have spent the last 4 hours trying to do this.... its not working I keep getting model mismatch error!
[AT&T Samsung Galaxy S7 Questions & Answers] jmdziba:
Hi,

Can you please point me to the instructions and files I need to successfully flash an ATT G7 with TMobile rom.
[AT&T Samsung Galaxy S7 Questions & Answers] ff-racer:
Over on the T-Mobile section:

https://xdaforums.com/tmobile-galaxy-s7/development/rom-g930tuvu4cri2-t3864700

This is what I am using now. I believe it is the last update for V4 bootloader. Can be rooted if desired.
[Desire 626 General] Abskurity:
Will this run on the Metro Variant?
[Desire 626 General] anthonykb:
As far as I know no but you can try in case it might.

Enter these commands in a new terminal window:

cd /dev/block/platform/soc.0/7824900.sdhci/by-name

dd if=boot of=/sdcard/backup.img

The backup boot image can be flashed from the sdcard in TWRP recovery if the device fails to boot into the system after flashing the boot image contained in the zip in the attachments.
[Desire 626 General] Abskurity:
Is there anyway you would be able to make one for the metro Variant if i upload my boot image?
[Desire 626 General] anthonykb:
MetroPCS Boot Image

Did you try unzipping the boot image and flashing it already? I don't think it could work that way. I would do it if I had the metro version myself.
[Desire 626 General] Abskurity:
Thats what im saying.if i upload my metro boot image would you be able to optimize it like you did before with the boost Variant?
[Desire 626 General] anthonykb:
I meant so you tried the boost version and it wouldn't boot? :D
[Desire 626 General] Abskurity:
No i havent tried it yet
[Desire 626 General] anthonykb:
Backup your kernel boot image to your sdcard and flash the boost version just to make sure.

cd /dev/block/platform/soc.0/7824900.sdhci/by-name

dd if=boot of=/sdcard/backup.img

Then unzip the 601bootimg.zip file with Zarchiver in the Play Store and flash the extracted boot image.
[Desire 626 General] Abskurity:
Okay ill do it now and let you know
[Desire 626 General] Abskurity:
The phone booted but it corrupted my sdcard,so i lost everything i had on there.
[Desire 626 General] anthonykb:
Flash back the backed up boot image in TWRP and see if the sdcard mounts right. The mount point contained in the boost boot image is probably wrong for the the sdcard/emmc in the metropcs phone.
[Desire 626 General] Abskurity:
I did but my sdcard got corrupted so i was forced to format it.
[Desire 626 General] anthonykb:
I'm so sorry the process turned out to be a dud for you I have the boost model myself. Hope you can recover your files with one of those forensic data recovery tools.
[Desire 626 General] Abskurity:
Its nothing important lol.any chance you can share what you did or how?
[Desire 626 General] anthonykb:
Use the Android Image Kitchen by osm0sis

Use the tool at the link below to unpack the image, make your modifications, and repack the image contents (The ramdisk and split_img folders.) It's available for Windows, Linux and Android. It's a simple process expect for knowing what you'd need to do to the image.

http://xdaforums.com/showthread.php?t=2073775
[Desire 626 General] Abskurity:
My mistake i was in a hurry when i typed that last reply.

Im aware of how to unpack/repack boot images and i appreciate the link,but i was wondering what modifications that were made.if youd prefer not to share,i can upload my boot image if youd like to make the modifications yourself.im just trying to make this compatible with the metro version.
[Desire 626 General] anthonykb:
The same modifications done for the Boost Desire 626S might not work well for the MetroPCS version so upload the image you backed up yesterday as an attachment in a reply post and I'll work on it.
[Desire 626 General] Abskurity:
Thanks a ton!:)
[Desire 626 General] anthonykb:
MetroPCS Boot Image

Run busybox top in the terminal on your phone and post some screenshots so I can see what might need to be done. We want to see what processes would be the culprit behind bogging down precious processor time and reducing the snappiness of the device in reacting to realtime input and handling current requests. :):D:):D
[Desire 626 General] Abskurity:
Im not sure if this helps but i used terminal to get this.
[Desire 626 General] anthonykb:
Could you run busybox top through an adb session and screenshot it inside windows? The screenshot is cut off so it is hard for me to determine what needs to be done. :):D:):D
[Desire 626 General] anthonykb:
Get your MSL/SPC security code

Use the info in this thread to get your MSL/SPC security code so you can write new values to NV entries in the modem. Some values are locked but you can change the BC config for both LTE and CDMA so that would at least be helpful. :D:):D:)

http://xdaforums.com/sprint-one-m9/general/nv-unlock-sim-t3314755
[Desire 626 General] anthonykb:
Working vpn

With this boot image you'll have working VPN functionality. The problem was the mocana modules loaded with the rom by the boot image on startup. Just unload them before they have a chance to stick. :):D:):D
[Desire 626 General] BigCountry907:
Hello

I am wondering if you are just modifying the ramdisk and still using the stock KERNEL.

I'm getting ready to compile my own kernel and wondered if you had any insight on this.
[Desire 626 General] anthonykb:
Just tweaking the kernel at runtime so any input you have on the matter is welcome. Have they released the kernel sources for 6.0.1 boost on HTCDev? :):D:):D
[Desire 626 General] anthonykb:
Interesting idea

Sounds like you have a pretty good concept there. Unfortunately I am not S-Off. They removed the ability to S-Off the Desire 626S in Sunshine but maybe the problem they were having with the tool was due to the tamper protection daemon. Maybe it would work if the ramdisk was made not to run it. ;):D:):D
[Desire 626 General] BigCountry907:
As far as i know we can still S-OFF the 626s with the XTC-2 clip.

It cost about $100 and sooner or later i want one.

I have read some people have desire 626s with S-OFF.

If I can study their .img backups It would be helpful.

But my main goal is to find a way to share the S-OFF.

Option 2 is to find the S-ON checkpoints (SWITCHES) and reverse them.

Got to get deeper inside this baby before I really know the best approach to take.

So step one is compiling the Kernel.

If I can run scripts at boot using init.d then I can log everything that's happening during the different partition flashes and different modes.

Kinda have to back track through the processes to find the checkpoints.

I haven't run into the Tamper Protection Daemon yet. But I would hope we could disable it.

I really think it all comes down to finding a way to flash the HOSD.img or modify it's loaded ramdisk.

That is where the hard to get around checkpoints are. If we can manipulate the hosd.img loaded ramdisk to allow us to flash a modified hosd.img were in.

I'm pretty sure we could take control from there.

As a side note.

If you are unpacking and repacking the boot.img from what I understand you have to be a ROOT user during the unpack and pack in order to keep all the file permissions straight. Normally I used mkbootimg but it seems using the AIK http://xdaforums.com/showthread.php?t=2073775. Is the way to go.
[Desire 626 General] anthonykb:
Change android settings in terminal

Android settings can be changed in the terminal for three namespaces; system, global and secure.

In the terminal run:

settings list system

settings list global

settings list secure

For each namespace all associated settings and their values will be listed. To change a setting type:

settings put system setting_name_here value_here

settings put global setting_name_here value_here

settings put secure setting_name_here value_here
[Desire 626 General] anthonykb:
Fix VPN functionality

For those who prefer nightbreed813's 6.0.1 slim rom version, I uploaded 601VPNDIALOGSFIX.zip to fix the issue with authorizing VPN clients, but first you have to create the directory /system/priv-app/VpnDialogs in Root Explorer or any other root filesystem browser, then reboot to TWRP recovery and flash the zip.
[Desire 626 General] Abskurity:
Can you elaborate on how you downgraded?i tried this but my misc partition only is 1mb in size & completely empty,theres no text in it whatsoever.
[Desire 626 General] Abskurity:
Thanks BigCountry907 !! Because of your Misc partition edit guide,i was actually able to downgrade from MM to LP.
[Desire 626 General] seanc1991:
Thanks for everythng! The boot img flashed perfectly and seems to work great. But I have no idea what I'm doing when it comes to the scripts. They are failing with write not found, operation not permitted, and no such file or directory and I honestly have no clue what I'm doing wrong. I'm about to pass out so I'll just post the first couple screenshots of the ANDKERNMAX.sh running and then if needed, I'll post some more tomorrow of the others. Thanks again.