Has anyone figured out a working combo between unbranded firmware/CSC that renders a bloatfree device with volte working?
Sent from my Pixel XL using Tapatalk
You should check out this thread. Quickvic30 posted saying he would flash and post results.
https://forum.xda-developers.com/galaxy-s8/how-to/switch-to-carrier-firmware-100-t3609487/page28
craya said:
Interesting. Here are the exact steps I took to recreate XAA/VZW/VZW on my SO's S8:
1) New vzw S8, didn't set it up, just skipped all steps.
2) Activated dev mode and used "adb reboot bootloader" to go into download mode
3) Flashed XAC firmware with non HOME_CSC
4) Set up phone normally; however, for security I only enabled pin + require pin on reboot. Enabled dev options again
5) Used adb reboot bootloader to get into download mode and flashed HOME_CSC only
6) Restarted and used *#2263# to get into the band selection menu, tapped enable all bands and hit apply
7) adb reboot bootloader and flashed VZW firmware, but used HOME_CSC for the csc file.
8) It takes about 3-4 minutes to reboot after entering pin for decryption
That resulted in the S8 being XAA/VZW/VZW with everything working properly
Click to expand...
Click to collapse
EUREKA!!
This worked... ended up with XAA/ATT/***
...but after factory reset from settings menu, it went to ATT/ATT/***. So the encrypted userdata is keeping it from updating the CSC section.
Tried it again (skipping a few steps)...
1) flashed G950W (XAC) w/CSC (not HOME)
2) setup with encrypted data (require pin on reboot)
3) flashed G950U w/HOME_CSC
4) PROFIT!! -- Ended up with XAA/ATT/*** -- VoLTE works! No bloat! No AT&T-spec status bar icons!
inneyeseakay said:
EUREKA!!
This worked... ended up with XAA/ATT/***
...but after factory reset from settings menu, it went to ATT/ATT/***. So the encrypted userdata is keeping it from updating the CSC section.
Tried it again (skipping a few steps)...
1) flashed G950W (XAC) w/CSC (not HOME)
2) setup with encrypted data (require pin on reboot)
3) flashed G950U w/HOME_CSC
4) PROFIT!! -- Ended up with XAA/ATT/*** -- VoLTE works! No bloat! No AT&T-spec status bar icons!
Click to expand...
Click to collapse
Is the phone running a bit smoother in your opinion? Battery life improvements?
Sent from my Pixel XL using XDA-Developers Legacy app
martinezma99 said:
Is the phone running a bit smoother in your opinion? Battery life improvements?
Sent from my Pixel XL using XDA-Developers Legacy app
Click to expand...
Click to collapse
Battery life definitely seems better. It's the only thing that was keeping me from going back to att/att/***
Sent from my Galaxy S8 using Tapatalk
Assuming I don't care about VOLTE and AT&T specific things. Flashing the unlocked firmware will give me a debloated fully working phone right? Unzip and put the correct files into Odin (prince) and that's it?
muppetmaster916 said:
Assuming I don't care about VOLTE and AT&T specific things. Flashing the unlocked firmware will give me a debloated fully working phone right? Unzip and put the correct files into Odin (prince) and that's it?
Click to expand...
Click to collapse
Yeah
Sent from my Galaxy S8 using Tapatalk
Does WiFi calling also show/work with this flash?
Thanks
wifiguru said:
Does WiFi calling also show/work with this flash?
Thanks
Click to expand...
Click to collapse
No, I haven't seen the option
Sent from my Galaxy S8 using Tapatalk
I'm confused, i don't need AT&T things because I use the phone overseas, but what its the benefits if I flashing the phone?
---------- Post added at 09:09 PM ---------- Previous post was at 09:07 PM ----------
muppetmaster916 said:
Assuming I don't care about VOLTE and AT&T specific things. Flashing the unlocked firmware will give me a debloated fully working phone right? Unzip and put the correct files into Odin (prince) and that's it?
Click to expand...
Click to collapse
Which files? where can I download.. thanks
inneyeseakay said:
EUREKA!!
This worked... ended up with XAA/ATT/***
...but after factory reset from settings menu, it went to ATT/ATT/***. So the encrypted userdata is keeping it from updating the CSC section.
Tried it again (skipping a few steps)...
1) flashed G950W (XAC) w/CSC (not HOME)
2) setup with encrypted data (require pin on reboot)
3) flashed G950U w/HOME_CSC
4) PROFIT!! -- Ended up with XAA/ATT/*** -- VoLTE works! No bloat! No AT&T-spec status bar icons!
Click to expand...
Click to collapse
Could you link the firmware files that you used? Also is there a reason you flashed the firmware for the canadian unlocked instead of the us version first?
inneyeseakay said:
Ended up with XAA/ATT/*** -- VoLTE works! No bloat! No AT&T-spec status bar icons!
Click to expand...
Click to collapse
How do you look up those codes?
Keith
keithnet said:
How do you look up those codes?
Keith
Click to expand...
Click to collapse
Settings > About > Service Provider SW Ver.
inneyeseakay said:
EUREKA!!
This worked... ended up with XAA/ATT/***
...but after factory reset from settings menu, it went to ATT/ATT/***. So the encrypted userdata is keeping it from updating the CSC section.
Tried it again (skipping a few steps)...
1) flashed G950W (XAC) w/CSC (not HOME)
2) setup with encrypted data (require pin on reboot)
3) flashed G950U w/HOME_CSC
4) PROFIT!! -- Ended up with XAA/ATT/*** -- VoLTE works! No bloat! No AT&T-spec status bar icons!
Click to expand...
Click to collapse
Sweet thanks finally figured it out.
Which G950U version did you final flash? Or was it G950U1?
joe3681 said:
Which G950U version did you final flash? Or was it G950U1?
Click to expand...
Click to collapse
Not u1, any carrier g950u will work... Most recently flashed Verizon AQF7
Sent from my iPhone 7+ using Tapatalk
Anything I try flashing with any Odin just gives fails. No reason, just fails
joe3681 said:
Anything I try flashing with any Odin just gives fails. No reason, just fails
Click to expand...
Click to collapse
Do you put the phone in download mode? Do you have the drivers installed?
Sent from my iPhone 7+ using Tapatalk
Yes. Been using Odin and various firmwares since Gingerbread days. I have everything installed properly.
I can flash U firmware on my S7E but not my S8
Odd... I had no problems flashing my s8+, s8 or my buddies s8+
Try a different cable or different USB port?
Sent from my iPhone 7+ using Tapatalk
Related
Thread on how to root S8! https://forum.xda-developers.com/galaxy-s8/development/samsung-galaxy-s8-root-snapdragon-t365930
Here is the Eng Boot for the SM-G950U. I did not get this, @unitz0mbie posted it. I am just posting it here. I will write a tutorial to root with this after it is done. We should have root at some point.
G950U1 firmware is the US firmware. It has the CSC info of each carrier but does NOT have any of the bloat or boot logos. For T-Mobile it has WiFi Calling and VoLTE. Verizon texting works with data and WiFi calling. All those carrier features work. AND It changes depending on the SIM card in your phone. So you don't need to keep flashing firmwares.
Thanks to @Rushstrike for going through everything with me for carrier changes.
Modified odin: https://www.androidfilehost.com/?fid=24686680535466915
Factory Binary G950U: https://androidfilehost.com/?fid=962021903579500553
G950U1 Firmware: http://updato.com/firmware-archive-select-model?record=31E7863CD55111E7A5F9FA163EE8F90B
G950W Firmware: http://updato.com/firmware-archive-select-model?record=E9C87532DEBF11E7A5F9FA163EE8F90B
How to flash G950U1:
1. Download G950U1 for your device and patched Odin.
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open patched Odin
5. add the firmware to the AP, CSC, CP, and BL sections of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. Enjoy G950U1
How to change carrier:
1. Download Factory Binary, G950U, and the G950W firmware.
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open Odin v3.12.7
5. add the Factory Binary to the AP section of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. One the phone reboots run the ADB command, adb reboot bootloader
10-12: Deleted because if redundence
13. Put the HOME_CSC of the G950W firmware into the CSC part of Odin (modded)
14. Click start
15. Open IME setting on Factory Binary
16. Type in *#243203855#
17. Select XAC
18. Click install
19. Wait for phone to reboot
20. Once it does open terminal and type in adb shell
21. Then type in echo "XXX" > /efs/imei/mps_code.dat
22. Type in exit into adb shell
23. Type in adb reboot bootloader
24. Flash the G950U firmware of your choosing without Userdata. Also make sure to flash the non-home CSC
25. Enjoy your new carrier!
CSC Values (replace on of these with the "XXX" in step 21):
BST Boost
VZW Verizon
ATT ATT
USC US Cellular
ACG C Spire
TMK MetroPCS
VMU Virgin Mobile
TFN Tracfone
XAS Sprint
TMB T-Mobile
XAA Unlocked US
SPR Sprint
CCT Xfinity Mobile
Don't entirely know which ones these are:
GCF World Wide
ACG Some Mid West Carriers
LRA A bunch, cant figure it out
Whaaa? First in line for this!! :victory:
sketron13 said:
Whaaa? First in line for this!! :victory:
Click to expand...
Click to collapse
root is not working yet. We have people working on it right now.
Totally understand, just showing my excitement and appreciation for the hard work that I'm sure is going into this right now.
:fingers-crossed:
sketron13 said:
Totally understand, just showing my excitement and appreciation for the hard work that I'm sure is going into this right now.
:fingers-crossed:
Click to expand...
Click to collapse
ok, we will get root soon.
Going to go ahead and follow this so I can get the jump on making a rom for us on T-mobile
Acoustichayes said:
Going to go ahead and follow this so I can get the jump on making a rom for us on T-mobile
Click to expand...
Click to collapse
we still need to get root for the S8. We have permissive SELinux status but still cant get a system mount. We have some people working on it currently. We are also waiting for another kernel from JUSMEJOSE.
mweinbach said:
we still need to get root for the S8. We have permissive SELinux status but still cant get a system mount. We have some people working on it currently. We are also waiting for another kernel from JUSMEJOSE.
Click to expand...
Click to collapse
Oh I understand that. I've been following that thread. But I know it will be posted here when it happens. I've been helping, but my knowledge in that area is still in the infancy, so I know someone will get it before I do
Acoustichayes said:
Oh I understand that. I've been following that thread. But I know it will be posted here when it happens. I've been helping, but my knowledge in that area is still in the infancy, so I know someone will get it before I do
Click to expand...
Click to collapse
ok
mweinbach said:
root is not working yet. We have people working on it right now.
Click to expand...
Click to collapse
Will be possible obtain TWRP Recovery with this ?
mweinbach said:
we still need to get root for the S8. We have permissive SELinux status but still cant get a system mount. We have some people working on it currently. We are also waiting for another kernel from JUSMEJOSE.
Click to expand...
Click to collapse
We have jusmejose files already and they're the same exact one's 3 ppl posted already which is same as what we already had essentially
---------- Post added at 05:48 AM ---------- Previous post was at 05:47 AM ----------
wolfgart said:
Will be possible obtain TWRP Recovery with this ?
Click to expand...
Click to collapse
No... in fact they won't even root our device as it stands lol
elliwigy said:
We have jusmejose files already and they're the same exact one's 3 ppl posted already which is same as what we already had essentially
---------- Post added at 05:48 AM ---------- Previous post was at 05:47 AM ----------
No... in fact they won't even root our device as it stands lol
Click to expand...
Click to collapse
Ugh. Well we will get it. I know we will. I personally think we need the new Odin to go any further.
Sweet! Someone Flash eng-boot.tar then run the S7 root.bat and test.
Sent from my SM-G955U using Tapatalk
mweinbach said:
Ugh. Well we will get it. I know we will. I personally think we need the new Odin to go any further.
Click to expand...
Click to collapse
How would that change anything lol
---------- Post added at 06:34 AM ---------- Previous post was at 06:32 AM ----------
MicroMod777 said:
Sweet! Someone Flash eng-boot.tar then run the S7 root.bat and test.
Click to expand...
Click to collapse
Why? The eng boots that 3 or more ppl posted are the same ones we've had this whole time lol..
But to let you and everyone else know again none of them have root access at all.. all they have is permissive and that is it.. the s7 root bat does nothing, does not work
Let me get this straight. Root for Snapdragon in a couple days? I thought we were still waiting for stuff..?
PieceofSlice said:
Let me get this straight. Root for Snapdragon in a couple days? I thought we were still waiting for stuff..?
Click to expand...
Click to collapse
we have engboot and we are waiting for people to get root on it.
Still no root? Thought all we needed was eng-boot. Guess Samsung patched to S7 method??
Sent from my SM-G955U using Tapatalk
mweinbach said:
we have engboot and we are waiting for people to get root on it.
Click to expand...
Click to collapse
No we are not.. 5 ppl posted the same "ENG boots" and none of them have root lol..they are only permissive which is the same as what we already had so nothing has changed
MicroMod777 said:
Still no root? Thought all we needed was eng-boot. Guess Samsung patched to S7 method??
Click to expand...
Click to collapse
We've always had ENG boots since the combination firmware.. the ones ppl just posted didnt bother to check it and turns out its the same exact ones... it is a newer build but only permissive
Here is the Eng Boot for the SM-G955U. I did not get this, @unitz0mbie posted it. I am just posting it here. This is instructions for how to switch carriers.
G955U1 firmware is the US firmware. It has the CSC info of each carrier but does NOT have any of the bloat or boot logos. For T-Mobile it has WiFi Calling and VoLTE. Verizon texting works with data and WiFi calling. All those carrier features work. AND It changes depending on the SIM card in your phone. So you don't need to keep flashing firmwares. I don't know for what device the G955U1 would come on. The US unlocked device has a model number of SM-G955UZKAXAA and a carrier SW version of XAA/XAA/XAA. I think this firmware is the one that they give reviewers. Gear VR doesn't work.
Thanks to @Rushstrike for going through everything with me for carrier changes.
EngBoot: https://drive.google.com/file/d/0B1tT3ufAPS4SYUVzRVZyS2pnUTA/view
EngBoot: https://www.androidfilehost.com/?fid=889764386195903885
Modified Odin: https://www.androidfilehost.com/?fid=24686680535466915
Factory Binary G955U: https://www.androidfilehost.com/?fid=745425885120731328
G955U1 Firmware: https://www.sammobile.com/firmwares/SM-G955U1/XAA/download/G955U1UEU1AQDC/167505/
G955W Firmware: https://www.sammobile.com/firmwares/SM-G955W/XAC/download/G955WVLU1AQDE/130947/
G955W Frimware: http://updato.com/firmware-archive-select-model?record=C102FC9F4BDB11E7963AFA163EE8F90B
G955U Firmware: https://www.sammobile.com/firmwares/galaxy-s8/SM-G955U/TMB/download/G955USQU1AQDE/130248/
G955U Firmware: http://updato.com/firmware-archive-select-model?record=55E89C7D4BED11E7963AFA163EE8F90B
How to flash G955U1:
1. Download G955U1 for your device and patched Odin.
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open patched Odin
5. add the firmware to the AP, CSC, CP, and BL sections of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. Enjoy G955U1
How to change carrier:
1. Download Factory Binary, EngBoot, G955U normal, and the G955W firmware
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open Odin v3.12.7
5. add the Factory Binary to the AP section of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. One the phone reboots run the ADB command, adb reboot bootloader
10. Open modded Odin and flash the EngBoot
11. Click start
12. Once the phone reboots type the command adb reboot bootloader
13. Put the HOME_CSC of the G955W firmware into the CSC part of Odin (unmodded)
14. Click start
15. Open IME setting on Factory Binary
16. Type in *#243203855#
17. Select XAC
18. Click install
19. Wait for phone to reboot
20. Once it does open terminal and type in adb shell
21. Then type in echo "XXX" > /efs/imei/mps_code.dat
22. Type in exit into adb shell
23. Type in adb reboot bootloader
24. Flash the G955U firmware of your choosing without Userdata. Also make sure to flash the non-home CSC
25. Enjoy your new carrier!
CSC Values (replace on of these with the "XXX" in step 21):
BST Boost
VZW Verizon
ATT ATT
USC US Cellular
ACG C Spire
TMK MetroPCS
VMU Virgin Mobile
TFN Tracfone
XAS Sprint
TMB T-Mobile
XAA Unlocked US
SPR Sprint
CCT Xfinity Mobile
Don't entirely know which ones these are:
GCF World Wide
ACG Some Mid West Carriers
LRA A bunch, cant figure it out
After you do this, you can flash the EngBoot then run the command to any carrier then just reflash the original system.
@mweinbach so I'm assuming since you mentioned root, this is the Engineering Boot we've been waiting for with write permission??
djhotsauce said:
@mweinbach so I'm assuming since you mentioned root, this is the Engineering Boot we've been waiting for with write permission??
Click to expand...
Click to collapse
No. I need to rewrite that. I just copied this from my S8 thread.
Wait, I flashed the unlocked firmware last week. I have zero bloat so it definitely appears I'm running the firmware but my CSC shows as TMB (originally on T-Mobile firmware.) So let's say I purchased an unlocked US model and popped my T-Mobile SIM in it. Should the CSC say XAA or TMB? If XAA, I can use your guide to switch over to XAA right?
Sent from my SM-G955U1 using Tapatalk
Rydah805 said:
Wait, I flashed the unlocked firmware last week. I have zero bloat so it definitely appears I'm running the firmware but my CSC shows as TMB (originally on T-Mobile firmware.) So let's say I purchased an unlocked US model and popped my T-Mobile SIM in it. Should the CSC say XAA or TMB? If XAA, I can use your guide to switch over to XAA right?
Sent from my SM-G955U1 using Tapatalk
Click to expand...
Click to collapse
TMB because the way it works is that it enables carrier CSC settings without the bloat. Switching to the XAA does nothing. It will just switch back to TMB when you put in your sim card.
mweinbach said:
TMB because the way it works is that it enables carrier CSC settings without the bloat. Switching to the XAA does nothing. It will just switch back to TMB when you put in your sim card.
Click to expand...
Click to collapse
Perfect. Was already getting ready to jump off a bridge after this long day. Lol thanks bro, great thread.
Glad I'm not the only one with broken VR. (not that I wish for that, just glad it isn't just me being a noob all over again.) Hopefully they fix it.
Sent from my SM-G955U1 using Tapatalk
Rydah805 said:
Perfect. Was already getting ready to jump off a bridge after this long day. Lol thanks bro, great thread.
Glad I'm not the only one with broken VR. (not that I wish for that, just glad it isn't just me being a noob all over again.) Hopefully they fix it.
Sent from my SM-G955U1 using Tapatalk
Click to expand...
Click to collapse
its disabled server side.
mweinbach said:
its disabled server side.
Click to expand...
Click to collapse
Ahhh that explains it. Wonder why they'd release an unlocked model with disabilities such as a VR headset they're pushing to sell.
Sent from my SM-G955U1 using Tapatalk
So what firmware do I need to sim unlock the s8+
Rootuser3.0 said:
So what firmware do I need to sim unlock the s8+
Click to expand...
Click to collapse
Don't quote me but G955U1 might work. You might still need to have it unlocked through your carrier.
it worked
Rootuser3.0 said:
So what firmware do I need to sim unlock the s8+
Click to expand...
Click to collapse
yes, you do need to unlock through your provider unless u r Sprint
elliwigy said:
yes, you do need to unlock through your provider unless u r Sprint
Click to expand...
Click to collapse
A person on ebay did something and sim unlocked it with 00000000
I'm on xmobile and now it takes a Verizon sim which rejected it before the unlock
Rootuser3.0 said:
A person on ebay did something and sim unlocked it with 00000000
I'm on xmobile and now it takes a Verizon sim which rejected it before the unlock
Click to expand...
Click to collapse
interesting... usually u needa go through the unlock app on tmo devices
Just flashed this on my unlocked T Mobile S8+, everything is working Wifi Calling and etc. I will have to wait until next week to try a Verizon SIM to see if that works.
Thanks for the post, but, is there anyway we can get a mirror for these files? sammobile is garbage. Why not just use google drive?
trebills said:
Thanks for the post, but, is there anyway we can get a mirror for these files? sammobile is garbage. Why not just use google drive?
Click to expand...
Click to collapse
Check updato
mweinbach said:
Check updato
Click to expand...
Click to collapse
EDIT: Found it thanks
I am not sure what you mean. An update?
Hi everyone,
If you've clicked on this thread you are probably just like me. You have a T-Mobile Galaxy S8 (950U) and wanted to try the unbranded/unlocked firmware. Maybe you thought it would SIM unlock your phone (Nope) or maybe you thought you'd like it but just don't. I was unable to find anyone who successfully reverted back to fully stock T-Mobile. My phone stayed XAA/XAA/TMB no matter what I did. Well, now I'm TMB/TMB/TMB and here to hopefully help you do the same.
I mostly followed this post: https://forum.xda-developers.com/galaxy-s8/how-to/switch-to-carrier-firmware-100-t3609487. Here's the instructions:
1. Download Factory Binary, EngBoot, and the G950W firmware.
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open Odin v3.12.7
5. add the Factory Binary to the AP section of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. One the phone reboots run the ADB command, adb reboot bootloader
10. Open PrinceComsy (modded) Odin and flash the EngBoot
11. Click start
12. Once the phone reboots type the command adb reboot bootloader
13. Put the HOME_CSC of the G950W firmware into the CSC part of Odin 3.12.7 (NOT PrinceComsy)
14. Click start
15. Open IME setting on Factory Binary
16. Type in *#243203855#
17. Select XAC
****NOTE ABOUT 15-17: A bunch of system processes kept saying they were force closing, but I just kept saying OK until I could successfully type the code into the dialer and select XAC. It worked, even with those processes supposedly failing.****
18. Click install
19. Wait for phone to reboot
20. Once it does open terminal and type in adb shell
21. Then type in echo "TMB" > /efs/imei/mps_code.dat
22. Type in exit into adb shell
23. Type in adb reboot bootloader
24. Flash the G950U T-Mobile firmware without Userdata. Also make sure to flash the non-home CSC.
25. Enjoy your reverted back to T-Mobile 100% stock phone.
Files you will need:
Factory Binary: https://www.androidfilehost.com/?fid=745425885120727548
Eng-Boot for 950U: https://drive.google.com/file/d/0B4NKFp9A7CsoSmpzeEFMSldhRlU/view?usp=sharing
Combination (950W) firmware for the Home_CSC: https://updato.com/firmware-archive-select-model?record=0465B78C273A11E7963AFA163EE8F90B
PrinceComsey Odin: https://www.androidfilehost.com/?fid=24588232905724860
Odin 3.12.7: https://mega.nz/#!UtI02CbY!XnmV7scm-HJq-lBUP5nOyDzs3Uwwmt17ldrfcl-9xoM
T-Mobile Stock firmware: https://updato.com/firmware-archive-select-model?record=4F86A80C2FA111E7963AFA163EE8F90B
Great work, bro
This was all mine. I did all of this. Why does nobody say anything about me doing it. It is in the EngBoot + Root thread. I mean really, thank the people that actually DO the work.
mweinbach said:
This was all mine. I did all of this. Why does nobody say anything about me doing it. It is in the EngBoot + Root thread. I mean really, thank the people that actually DO the work.
Click to expand...
Click to collapse
Agreed, I used your guide to help me get back to TMo version. You will find variation of your work here and there. But I agreed that OP should be credited.
mweinbach said:
This was all mine. I did all of this. Why does nobody say anything about me doing it. It is in the EngBoot + Root thread. I mean really, thank the people that actually DO the work.
Click to expand...
Click to collapse
Happy to give you credit man. I spent days asking on four or five threads if anyone had converted their T-Mobile S8 back to 100% stock. I found no one. One guy mentioned he got his Verizon S8 back to stock.
I found the carrier switch thread ...which gave great instructions, but didn't tell you anything about where to get these files. So I searched around to get the files and spent a good two hours trying and failing until it worked. I figured a thread with not only the instructions, but also all the files you need...would be helpful.
I'm on XDA a few times a year when a new phone comes out. I could literally care less about "credit." However, I can tell you do...and I am thankful for your instructions. I would honestly have no problem with me deleting this thread, having you copy the text, and then you can post the same thing again only with your name as the thread maker. Let me know.
dharmastation3 said:
Happy to give you credit man. I spent days asking on four or five threads if anyone had converted their T-Mobile S8 back to 100% stock. I found no one. One guy mentioned he got his Verizon S8 back to stock.
I found the carrier switch thread ...which gave great instructions, but didn't tell you anything about where to get these files. So I searched around to get the files and spent a good two hours trying and failing until it worked. I figured a thread with not only the instructions, but also all the files you need...would be helpful.
I'm on XDA a few times a year when a new phone comes out. I could literally care less about "credit." However, I can tell you do...and I am thankful for your instructions. I would honestly have no problem with me deleting this thread, having you copy the text, and then you can post the same thing again only with your name as the thread maker. Let me know.
Click to expand...
Click to collapse
I just care that people know who came up with what. If you dont want to add credit, fine. But dont delete this because some people might not know where to go for info.
mweinbach said:
I just care that people know who came up with what. If you dont want to add credit, fine. But dont delete this because some people might not know where to go for info.
Click to expand...
Click to collapse
Can you copy the instructions (and the files I gathered in this thread) and make your own post? I will delete this if you do. Because it does no one any good to have the comments on here being about people wanting credit. Why don't you just re-post this under your username?
All I care about is helping people.
dharmastation3 said:
Hi everyone,
If you've clicked on this thread you are probably just like me. You have a T-Mobile Galaxy S8 (950U) and wanted to try the unbranded/unlocked firmware. Maybe you thought it would SIM unlock your phone (Nope) or maybe you thought you'd like it but just don't. I was unable to find anyone who successfully reverted back to fully stock T-Mobile. My phone stayed XAA/XAA/TMB no matter what I did. Well, now I'm TMB/TMB/TMB and here to hopefully help you do the same.
I mostly followed this post: https://forum.xda-developers.com/galaxy-s8/how-to/switch-to-carrier-firmware-100-t3609487. Here's the instructions:
1. Download Factory Binary, EngBoot, and the G950W firmware.
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open Odin v3.12.7
5. add the Factory Binary to the AP section of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. One the phone reboots run the ADB command, adb reboot bootloader
10. Open PrinceComsy (modded) Odin and flash the EngBoot
11. Click start
12. Once the phone reboots type the command adb reboot bootloader
13. Put the HOME_CSC of the G950W firmware into the CSC part of Odin 3.12.7 (NOT PrinceComsy)
14. Click start
15. Open IME setting on Factory Binary
16. Type in *#243203855#
17. Select XAC
****NOTE ABOUT 15-17: A bunch of system processes kept saying they were force closing, but I just kept saying OK until I could successfully type the code into the dialer and select XAC. It worked, even with those processes supposedly failing.****
18. Click install
19. Wait for phone to reboot
20. Once it does open terminal and type in adb shell
21. Then type in echo "TMB" > /efs/imei/mps_code.dat
22. Type in exit into adb shell
23. Type in adb reboot bootloader
24. Flash the G950U T-Mobile firmware without Userdata. Also make sure to flash the non-home CSC.
25. Enjoy your reverted back to T-Mobile 100% stock phone.
Files you will need:
Factory Binary: https://www.androidfilehost.com/?fid=745425885120727548
Eng-Boot for 950U: https://drive.google.com/file/d/0B4NKFp9A7CsoSmpzeEFMSldhRlU/view?usp=sharing
Combination (950W) firmware for the Home_CSC: https://updato.com/firmware-archive-select-model?record=0465B78C273A11E7963AFA163EE8F90B
PrinceComsey Odin: https://www.androidfilehost.com/?fid=24588232905724860
Odin 3.12.7: https://mega.nz/#!UtI02CbY!XnmV7scm-HJq-lBUP5nOyDzs3Uwwmt17ldrfcl-9xoM
T-Mobile Stock firmware: https://updato.com/firmware-archive-select-model?record=4F86A80C2FA111E7963AFA163EE8F90B
Click to expand...
Click to collapse
Where would I check if I'm TMB/TMB/TMB? I went from XAA firmware back to stock TMB firmware using official Odin 3.12.7 and all seems fine. I don't see any issues at all but I do wanna confirm everything is good to go.
Sent from my SM-G955U using Tapatalk
Rydah805 said:
Where would I check if I'm TMB/TMB/TMB? I went from XAA firmware back to stock TMB firmware using official Odin 3.12.7 and all seems fine. I don't see any issues at all but I do wanna confirm everything is good to go.
Sent from my SM-G955U using Tapatalk
Click to expand...
Click to collapse
Settings / About phone / Service provider SW ver.
yusssi said:
Settings / About phone / Service provider SW ver.
Click to expand...
Click to collapse
Figured it out after I posted but thanks for confirming. ??
Sent from my SM-G955U using Tapatalk
Is there any way to go to the TMobile firmware, just without the Tmo splash screen?
Zorn_ said:
Is there any way to go to the TMobile firmware, just without the Tmo splash screen?
Click to expand...
Click to collapse
G950U1 firmware is the closest I have seen.
mweinbach said:
G950U1 firmware is the closest I have seen.
Click to expand...
Click to collapse
If you follow all the steps to change the CSC to TMB, then at the very end flash the unlocked G950U1 firmware, does the phone still identify as TMobile? And would you be able to get the TMobile updates (like the 6/7 update)?
Zorn_ said:
If you follow all the steps to change the CSC to TMB, then at the very end flash the unlocked G950U1 firmware, does the phone still identify as TMobile? And would you be able to get the TMobile updates (like the 6/7 update)?
Click to expand...
Click to collapse
Nope, the systems are different. The updates are also different. The G950U1 ones come from samsung the others come from TMobile.
mweinbach said:
Nope, the systems are different. The updates are also different. The G950U1 ones come from samsung the others come from TMobile.
Click to expand...
Click to collapse
Gotcha. Thanks for your replies. Main reason I'm worried about staying on the unlocked firmware is Samsung's horrible reputation for updates last time around. I'm afraid we won't get the updates on this firmware until 6 months after the carrier versions.
Can I use this ROM and instructions to switch from Verizon S8 to Tmobile S8 Rom?
Thanks
---------- Post added at 07:25 PM ---------- Previous post was at 07:19 PM ----------
rider4ever said:
Can I use this ROM and instructions to switch from Verizon S8 to Tmobile S8 Rom?
Thanks
Click to expand...
Click to collapse
Found this: https://forum.xda-developers.com/galaxy-s8/how-to/switch-to-carrier-firmware-100-t3609487
Help
When I try to flash the home_csc in the CSC spot odin then click 'start' odin says Fail!SHA256 is invalid.
I thought if we just flashed 950u1 firmware we could just flash straight back to the tmobile stock firmware in the same method.
So this whole thread is about 950U1, which is the S8, what about S8+? I have a T-Mobile S8+, flashed the unlocked version firmware, wanted to go back, but this instruction only deals with 950U1, what about 955U1?
Ok, i can say if you just flashed the 950u1 or 955u1 firmware with modified odin. All you have to do is flash the tmobile firmware with official odin and then do a data reset from the bootloader menu.
I was able to go right back to official tmobile firmware and get OTA updates.
OK I see there are a few threads on this but would someone please point me to the correct post to convert the unlocked US S8 to the AT&T version so I can get VOLTE and wifi calling? TIA for your help!
I have the same phone.
But what is so special about volte?
1st only works with other AT&T users with VOLTE capable devices but the audio is very strangely clear. For me this is about my entire family, plus I want wifi calling
Umm I have 950U that I Preordered direct from Samsung as an AT&T phone. I don't think there is an S8 950A model. I have VoLTE and wifi calling.
All model numbers are 950U, but to get to the at&t specific firmware, follow directions here:
https://www.google.com/amp/s/forum..../switch-to-carrier-firmware-100-t3609487/amp/
Sent from my Galaxy S8 using Tapatalk
Refer to the post HOW TO carrier switch
inneyeseakay said:
All model numbers are 950U, but to get to the at&t specific firmware, follow directions here:
https://www.google.com/amp/s/forum..../switch-to-carrier-firmware-100-t3609487/amp/
Sent from my Galaxy S8 using Tapatalk
Click to expand...
Click to collapse
Yes my mistake, I'm stuck in the past where every AT&T version is the A. I found the AT&T firmware for the 950U on SamMobile (G950U1UEU1AQE3_G950U1OYM1AQE3_ATT.zip) and was thinking I would need the CSC from that firmware but it seems not, Anyway thanks for the link and I'll give it a shot.
rzracer2 said:
Yes my mistake, I'm stuck in the past where every AT&T version is the A. I found the AT&T firmware for the 950U on SamMobile (G950U1UEU1AQE3_G950U1OYM1AQE3_ATT.zip) and was thinking I would need the CSC from that firmware but it seems not, Anyway thanks for the link and I'll give it a shot.
Click to expand...
Click to collapse
That's not att firmware that's unlocked us firmware since it's compatible with all major us carriers. I have that software version on my Factory unlocked US model S8.
Wow that post is all over the place. Can any kind soul that has an US unlocked and set it up as an AT&T device can help set me strait please? I'm thinking I need to flash the Engboot (never did this in ODIN so I don't what block it is?) and then Launch IMEI factory dialer and put in code ( *#243203855#). Not sure how to do this either unless they mean the phone's dialer app. Thank you sooo much for your help!
Follow the directions in the link I posted step by step... That's what I did and it worked to change mine from a Cricket phone to an AT&T phone.
Sent from my Galaxy S8 using Tapatalk
I'm using an S8 unlocked version on AT&T postpaid account and I would not use AT&T's Firmware it's all full of junk apps that are not Useful at all.The S8 without all that blot where is much snappier lt is fantastic everywhere I go I even get LTE+
so I need every step for an unlocked as would be a locked phone?
rzracer2 said:
so I need every step for an unlocked as would be a locked phone?
Click to expand...
Click to collapse
If you want all the att features, yes...
Sent from my Galaxy S8 using Tapatalk
---------- Post added at 07:13 AM ---------- Previous post was at 07:10 AM ----------
tlopez1973 said:
I'm using an S8 unlocked version on AT&T postpaid account and I would not use AT&T's Firmware it's all full of junk apps that are not Useful at all.The S8 without all that blot where is much snappier lt is fantastic everywhere I go I even get LTE+
Click to expand...
Click to collapse
I see your LTE+ and I raise you. [emoji16]
Sent from my Galaxy S8 using Tapatalk
---------- Post added at 07:16 AM ---------- Previous post was at 07:13 AM ----------
rzracer2 said:
so I need every step for an unlocked as would be a locked phone?
Click to expand...
Click to collapse
You could try flashing the userdata section from an att firmware, some have said that worked too.
Sent from my Galaxy S8 using Tapatalk
OK so I need all these steps at the bottom, still doesn't click to me why I need Canadian CSC to get AT&T features but ok. Can I get help with the following steps, Thanks,
Step 1. Download Factory Binary, (is this my factory unlocked ROM on SamMobile?)
Step 1. Download 950W firmware. (does it matter which version, there are like 15 different on SamMobile)
Step 15. Open IME setting on Factory Binary, I have no idea what this is, Is this something in the modified ODIN?
How to change carrier:
1. Download Factory Binary, EngBoot, and the G950W firmware. (i dont think engboot is needed i did it without eng boot and works)
2. Turn off phone
3. Hold down on Bixby button + power + volume down
4. open Odin v3.12.7
5. add the Factory Binary to the AP section of Odin.
6. Plug your phone into your computer (NEEDS TO BE WINDOWS) with Odin open
7. Make sure your device is connected and recognized by Odin.
8. Click start.
9. One the phone reboots run the ADB command, adb reboot bootloader
10. Open modded Odin and flash the EngBoot
11. Click start
12. Once the phone reboots type the command adb reboot bootloader
13. Put the HOME_CSC of the G950W firmware into the CSC part of Odin (unmodded)
14. Click start
15. Open IME setting on Factory Binary
16. Type in *#243203855#
17. Select XAC
18. Click install
19. Wait for phone to reboot
20. Once it does open terminal and type in adb shell
21. Then type in echo "XXX" > /efs/imei/mps_code.dat
22. Type in exit into adb shell
23. Type in adb reboot bootloader
24. Flash the G950U firmware of your choosing without Userdata. Also make sure to flash the non-home CSC
25. Enjoy your new carrier!
I've actually found you can simply:
flash engboot w/mod ODIN
Boot phone, enable usb debugging
adb shell echo "ATT" > /efs/imei/mps_code.dat
flash full stock firmware (any carrier) in stock ODIN w/non-home CSC
upon reboot, you'll boot with att features
Sent from my Galaxy S8 using Tapatalk
inneyeseakay said:
I've actually found you can simply:
flash engboot w/mod ODIN
Boot phone, enable usb debugging
adb shell echo "ATT" > /efs/imei/mps_code.dat
flash full stock firmware (any carrier) in stock ODIN w/non-home CSC
upon reboot, you'll boot with att features
Sent from my Galaxy S8 using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply, I flashed Engboot with PrinceComsey ODIN and it erased my data and reboot me to setup (hope this is normal). I open ADB and type adb shell then echo "ATT" > /efs/imei/mps_code.dat but get the error permission denied. If I paste your whole line "adb shell echo "ATT" > /efs/imei/mps_code.dat" I get The system cannot find the path specified. USB degging is on. Thank you
Doesn't the unlocked version have different bands than the att version? It is my understanding that if you have att service that att branded version has wifi calling, volte, and virtual voicemail. Correct?
macklobell said:
Doesn't the unlocked version have different bands than the att version? It is my understanding that if you have att service that att branded version has wifi calling, volte, and virtual voicemail. Correct?
Click to expand...
Click to collapse
All S8 use the same hardware, the software/firmware dictates which bands/features are active.
Sent from my Galaxy S8 using Tapatalk
---------- Post added at 09:41 PM ---------- Previous post was at 09:40 PM ----------
rzracer2 said:
Thanks for the reply, I flashed Engboot with PrinceComsey ODIN and it erased my data and reboot me to setup (hope this is normal). I open ADB and type adb shell then echo "ATT" > /efs/imei/mps_code.dat but get the error permission denied. If I paste your whole line "adb shell echo "ATT" > /efs/imei/mps_code.dat" I get The system cannot find the path specified. USB degging is on. Thank you
Click to expand...
Click to collapse
Since you have unlocked phone, you may need to flash carrier firmware before getting access to /efs/IMEI
Although, the unlocked one may not have that file either. Not sure...
Sent from my Galaxy S8 using Tapatalk
If you compare them side by side at Samsung.com, the unlocked version has less bands than the att version.
inneyeseakay said:
I've actually found you can simply:
flash engboot w/mod ODIN
Boot phone, enable usb debugging
adb shell echo "ATT" > /efs/imei/mps_code.dat
flash full stock firmware (any carrier) in stock ODIN w/non-home CSC
upon reboot, you'll boot with att features
Sent from my Galaxy S8 using Tapatalk
Click to expand...
Click to collapse
A question for bit a of clarification:
I understand that you flash full stock with the Non-Home CSC, but which Non-CSC, the one containing Cache, PIT, and OMR or the other with Cache, and UserData?
Thanks.
Below is a link for the official Verizon ( VZW ) SM-G950U G950USQU2CRB9 Oreo ( Android 8.0 ) firmware package.
https://mega.nz/#!lAoX3IBY!jRAbEDpg7B2E6-I-EYIyy0dKW8ZRVNM2MSrwE6zCHZI
Contains:
AP_G950USQU2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT_meta.tar.md5
BL_G950USQU2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
CP_G950USQU2CRB9_CP9027709_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
CSC_OYN_G950UOYN2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
HOME_CSC_OYN_G950UOYN2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
USERDATA_VZW_G950USQU2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
*The CSC contains a PIT and will wipe the phone; HOME_CSC does not and will not, respectively.
**Odin v3.13.1 is required to flash Oreo firmware (LZ4 compression support). Below is the xda forum link to the original odin and my patched odin for flashing and/or crossflashing.
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
¡BBB!
All Interruptible
Sourced direct from Verizon.
Do we need to flash the CSC? I'd like to keep my data if somehow possible ?
kornnflake said:
Do we need to flash the CSC? I'd like to keep my data if somehow possible
Click to expand...
Click to collapse
Choice is CSC or HOME_CSC. Success will vary depending on previous firmware and/or phone data.
¡realBBB!
Weeping Read
Worked perfectly with HOME_CSC and all the other files in zip without USERDATA or CSC. Thanks for this!
Hi. i am a noob, and using an unlocked verizon s8 in Asia. So is there anything i need to do before trying to flash?
Is this compatible with the XFINITY SM-G950U?
kabbab said:
Hi. i am a noob, and using an unlocked verizon s8 in Asia. So is there anything i need to do before trying to flash?
Click to expand...
Click to collapse
Not really. Maybe a backup, if you wish.
BBB
Life Peach
skylr616 said:
Is this compatible with the XFINITY SM-G950U?
Click to expand...
Click to collapse
Not sure if you can flash with a stock odin or not. But this firmware will work fine on any snapdragon g950u/g950u1 phones.
BBB
Really Stoke
having trouble
GeorgeNav said:
Worked perfectly with HOME_CSC and all the other files in zip without USERDATA or CSC. Thanks for this!
Click to expand...
Click to collapse
I have tried flashing an unlocked Samsung S8 with the above Verizon firmware but I am running into a problem. I set up to flash the BL, AP, CP and HOME_CSC files and Odin begins the process but hangs for many minutes at "Setup Connection", and then eventually states FAIL for reprogramming. It knows the phone is connected and "added" on the right COM port but will not flash. What am I doing wrong? Thanks for the help, a lot!!!!! I am running Odin3 v3.13
---------- Post added at 11:23 PM ---------- Previous post was at 10:23 PM ----------
1Littlegiant said:
I have tried flashing an unlocked Samsung S8 with the above Verizon firmware but I am running into a problem. I set up to flash the BL, AP, CP and HOME_CSC files and Odin begins the process but hangs for many minutes at "Setup Connection", and then eventually states FAIL for reprogramming. It knows the phone is connected and "added" on the right COM port but will not flash. What am I doing wrong? Thanks for the help, a lot!!!!! I am running Odin3 v3.13
Click to expand...
Click to collapse
I was enabling USB debug in developer mode but when I went into download mode it would not work. Apparently I am fat fingered and deselected USB debugging so no usable connection. Once got that done used ¡BBB! Odin patched (THANK YOU SIR!!!!!!!!) and loaded the files above. Reflashed and rebooted in a few minutes, got PASS out of Odin and phone booted up just fine. Now I am able to enable the Advanced Calling feature which I sorely needed living in a lousy reception cell zone area. Thanks all for the work you put in, it is most appreciated!
Verizon Unlocked Samsung s8
realbbb said:
Below is a link for the official Verizon ( VZW ) SM-G950U G950USQU2CRB9 Oreo ( Android 8.0 ) firmware package.
https://mega.nz/#!lAoX3IBY!jRAbEDpg7B2E6-I-EYIyy0dKW8ZRVNM2MSrwE6zCHZI
Contains:
AP_G950USQU2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT_meta.tar.md5
BL_G950USQU2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
CP_G950USQU2CRB9_CP9027709_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
CSC_OYN_G950UOYN2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
HOME_CSC_OYN_G950UOYN2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
USERDATA_VZW_G950USQU2CRB9_CL13001792_QB17097553_REV01_user_low_ship_MULTI_CERT.tar.md5
*The CSC contains a PIT and will wipe the phone; HOME_CSC does not and will not, respectively.
**Odin v3.13.1 is required to flash Oreo firmware (LZ4 compression support). Below is the xda forum link to the original odin and my patched odin for flashing and/or crossflashing.
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
¡BBB!
All Interruptible
Sourced direct from Verizon.
Click to expand...
Click to collapse
I have verizon samsung s8 unlocked phone with android 8.0.
Is this flashing gonna remove the verizon bloatware also.
Thanks
mantej16 said:
I have verizon samsung s8 unlocked phone with android 8.0.
Is this flashing gonna remove the verizon bloatware also.
Thanks
Click to expand...
Click to collapse
No.
For no bloat; locate G950U1UEU2CRB9.
realBBB
Bey Koard
Is Hotspot unlocked ?
Is there a newer version to this? I am currently trying to flash my S8 back to stock after failing to root it (I didnt realize rooting on this phone was blocked). I keep getting the following error: SW Rev Check Fail: [abl]Fused 3 > Binary 2.
Please help!
ReklezzTrini said:
Is there a newer version to this? I am currently trying to flash my S8 back to stock after failing to root it (I didnt realize rooting on this phone was blocked). I keep getting the following error: SW Rev Check Fail: [abl]Fused 3 > Binary 2.
Please help!
Click to expand...
Click to collapse
It sounds like you are trying to flash a version 2 bootloader when you already have a version 3 BL installed. You need to find an updated ROM that has the version 3 BL.
Smithfolk4 said:
It sounds like you are trying to flash a version 2 bootloader when you already have a version 3 BL installed. You need to find an updated ROM that has the version 3 BL.
Click to expand...
Click to collapse
I actually managed to fix it. I ended up using an ATT file set? And that worked perfectly fine for me.
ReklezzTrini said:
I actually managed to fix it. I ended up using an ATT file set? And that worked perfectly fine for me.
Click to expand...
Click to collapse
Glad you figured it out,