Database Info

How to get back to SM-G955u1 firmware from 955u with Bootloader REV 2

For all of you out there who happened to get stuck on 955u firmware containing bootloader 2 installed on the 955u1, there is hope!
I have successfully gotten back to 955u1 firmware and running stock OREO. (and have service again for those who are on non-mainstream carriers {Verizon, Sprint, T-Mobile, AT&T})
You will need (links to be added soon) (My Carrier in BL says XAA and these linked are the XAA firmwares):
USB 2.0 PORT
PRINCECOMSEY ODIN 3.12... link
regular ODIN 3.13.1 (what i used) link
G955U1UES2AQL1_G955U1OYM2AQL1 Firmware link
G955U1UEU2CRB9_G955U1OYM2CRB9 Firmware link
Official Samsung Cable that came with phone (preferably)
Windows OS
A Galaxy S8+ 955u1 Phone (only tried with this)
For some reason flashing just the CRB9 firmware would not work, I had to use the AQL1 and then to the CRB9
Instructions:
1. Extract both firmware files/zips (Put in 2 seperate folders so no mixups)
2. Reboot your phone to download mode (Power off then -- Power + Bixby + Volume Down at same time)
3. Open up princecomsey ODIN and then connect your phone to USB 2.0 Port
4. Add in the AQL1 Files - (BL, AP, CP, CSC) -- (I personally first did the AP, CP, and CSC then had it reboot then i restarted and flashed the BL by itself then rebooted) and press start. (I unchecked everything but reboot and f.reset time)
5. Unplug and Wait for it to turn on to the setup screen, then finish the setup (to verify that it runs and the model number is showing the correct #). If you open up settings it will be all jumbled up and weird, but dont worry. If you dont have service yet - dont worry.
6. Now after the phone is all setup (or if you decided to skip), unplug and power off the phone then boot into download mode again.
7. Now open up Regular odin and reconnect the phone
8. Now put in the CRB9 files (BL, AP, CP, CSC) (I put all in this time and i used the Home_CSC this time but you can use csc normal but no guarantee that would work with getting service again as i didnt try it) and press start and wait til it finishes and reboots (same goes here reboot, f stop time. but also check nand erase all -- to fix storage issue)
9. ENJOY!!!

NewDev4IOS said:
For all of you out there who happened to get stuck on 955u firmware containing bootloader 2 installed on the 955u1, there is hope!
I have successfully gotten back to 955u1 firmware and running stock OREO. (and have service again for those who are on non-mainstream carriers {Verizon, Sprint, T-Mobile, AT&T})
You will need (links to be added soon) (My Carrier in BL says XAA and these linked are the XAA firmwares):
USB 2.0 PORT
PRINCECOMSEY ODIN 3.12... link
regular ODIN 3.13.1 (what i used) link
G955U1UES2AQL1_G955U1OYM2AQL1 Firmware (link in an hour or 2)
G955U1UEU2CRB9_G955U1OYM2CRB9 Firmware (link in an hour or 2)
Official Samsung Cable that came with phone (preferably)
Windows OS
A Galaxy S8+ 955u1 Phone (only tried with this)
For some reason flashing just the CRB9 firmware would not work, I had to use the AQL1 and then to the CRB9
Instructions:
1. Extract both firmware files/zips (Put in 2 seperate folders so no mixups)
2. Reboot your phone to download mode (Power off then -- Power + Bixby + Volume Down at same time)
3. Open up princecomsey ODIN and then connect your phone to USB 2.0 Port
4. Add in the AQL1 Files - (BL, AP, CP, CSC) -- (I personally first did the AP, CP, and CSC then had it reboot then i restarted and flashed the BL by itself then rebooted) and press start. (I unchecked everything but reboot and f.reset time)
5. Unplug and Wait for it to turn on to the setup screen, then finish the setup. If you open up settings it will be all jumbled up and weird, but dont worry. If you dont have service yet - dont worry.
6. Now after the phone is all setup (or if you decided to skip), unplug and power off the phone then boot into download mode again.
7. Now open up Regular odin and reconnect the phone
8. Now put in the CRB9 files (BL, AP, CP, CSC) (I put all in this time and i used the Home_CSC this time but you can use csc normal but no guarantee that would work with getting service again as i didnt try it) and press start and wait til it finishes and reboots
9. ENJOY!!!
Click to expand...
Click to collapse
Did you volte work again after you went back to stock u1 firmware. Also is the a quicker way to download AQL1 because sammobile is a joke thanks
Sent from my [device_name] using XDA-Developers Legacy app

bonebeatz1234 said:
Did you volte work again after you went back to stock u1 firmware. Also is the a quicker way to download AQL1 because sammobile is a joke thanks
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
Im going to be uploading the firmware and yes the VoLTE is working.
Also When flashing the CRB9 after the ALQ1 -- A repartition or nand erase all should be done as when i looked at my storage last night it was only 16GB but since im back to u1 firmware it shouldnt be hard to fix for me. i will edit with main post after i do it to my phone to ensure which one works.

uploaded
bonebeatz1234 said:
Did you volte work again after you went back to stock u1 firmware. Also is the a quicker way to download AQL1 because sammobile is a joke thanks
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
files are uploaded now -- finally (took a few tries)

NewDev4IOS said:
For all of you out there who happened to get stuck on 955u firmware containing bootloader 2 installed on the 955u1, there is hope!
I have successfully gotten back to 955u1 firmware and running stock OREO. (and have service again for those who are on non-mainstream carriers {Verizon, Sprint, T-Mobile, AT&T})
You will need (links to be added soon) (My Carrier in BL says XAA and these linked are the XAA firmwares):
USB 2.0 PORT
PRINCECOMSEY ODIN 3.12... link
regular ODIN 3.13.1 (what i used) link
G955U1UES2AQL1_G955U1OYM2AQL1 Firmware link
G955U1UEU2CRB9_G955U1OYM2CRB9 Firmware link
Official Samsung Cable that came with phone (preferably)
Windows OS
A Galaxy S8+ 955u1 Phone (only tried with this)
For some reason flashing just the CRB9 firmware would not work, I had to use the AQL1 and then to the CRB9
Instructions:
1. Extract both firmware files/zips (Put in 2 seperate folders so no mixups)
2. Reboot your phone to download mode (Power off then -- Power + Bixby + Volume Down at same time)
3. Open up princecomsey ODIN and then connect your phone to USB 2.0 Port
4. Add in the AQL1 Files - (BL, AP, CP, CSC) -- (I personally first did the AP, CP, and CSC then had it reboot then i restarted and flashed the BL by itself then rebooted) and press start. (I unchecked everything but reboot and f.reset time)
5. Unplug and Wait for it to turn on to the setup screen, then finish the setup (to verify that it runs and the model number is showing the correct #). If you open up settings it will be all jumbled up and weird, but dont worry. If you dont have service yet - dont worry.
6. Now after the phone is all setup (or if you decided to skip), unplug and power off the phone then boot into download mode again.
7. Now open up Regular odin and reconnect the phone
8. Now put in the CRB9 files (BL, AP, CP, CSC) (I put all in this time and i used the Home_CSC this time but you can use csc normal but no guarantee that would work with getting service again as i didnt try it) and press start and wait til it finishes and reboots (same goes here reboot, f stop time. but also check nand erase all -- to fix storage issue)
9. ENJOY!!!
Click to expand...
Click to collapse
Thank you so much! it worked coming from the g955u on verizon.

Was on Verizon 955U CRC5. Did the AQL1 and didn't have any jumbled or weird settings and storage is fine. Regular Odin failed trying to do CRB9. Downloaded the Software Update/OTA CRB9 update and all is good. On build R16NW.G955U1UEU2CRB9 with March 1 Security patch.

Sorry for bugging, newb here. Will this work on my Sprint Galaxy S8 Plus smg955usqs2bql1? And if so if you could spare a few and and help me. I believe I need this right to get root on my device?

sacking76 said:
Sorry for bugging, newb here. Will this work on my Sprint Galaxy S8 Plus smg955usqs2bql1? And if so if you could spare a few and and help me. I believe I need this right to get root on my device?
Click to expand...
Click to collapse
What if you flashed the sm-g955u1 version on to a sprint sm-g955u phone? would there be any way to power that back on, asking for a friend I believe thats what he done. Now his phone will not turn on.

kingjay2013 said:
What if you flashed the sm-g955u1 version on to a sprint sm-g955u phone? would there be any way to power that back on, asking for a friend I believe thats what he done. Now his phone will not turn on.
Click to expand...
Click to collapse
Honestly I do not know all I have is a 955u1 and am unable to test for other models as I don’t have any others, and now since bootloader version 3 is out for the 955u1 it is the end of carrier switching unless there is a workaround found in the near future.
This should still work as long as you keep the device on the same bootloader v2 and not Flash any v3 bootloader Firmware as that will definitely brick the device from what I’ve heard of v3 bootloaders
Sorry for any late replies been really busy lately

kingjay2013 said:
What if you flashed the sm-g955u1 version on to a sprint sm-g955u phone? would there be any way to power that back on, asking for a friend I believe thats what he done. Now his phone will not turn on.
Click to expand...
Click to collapse
Honestly I do not know all I have is a 955u1 and am unable to test for other models as I don’t have any others, and now since bootloader version 3 is out for the 955u1 it is the end of carrier switching unless there is a workaround found in the near future.
This should still work as long as you keep the device on the same bootloader v2 and not Flash any v3 bootloader Firmware as that will definitely brick the device from what I’ve heard of v3 bootloaders
I’m guessing your friend must have flashed firmware running bootloader v3 on it
(To tell what BL ver. The firmware contains look at the 5th character from the end and it is should be a number like xxx1xxxx or xxx2xxxx etc...) and if it was a 3 then that would be why as that firmware will brick the phone if it’s flashed on a different model (until there is a workaround)
Sorry for any late replies been really busy lately

sacking76 said:
Sorry for bugging, newb here. Will this work on my Sprint Galaxy S8 Plus smg955usqs2bql1? And if so if you could spare a few and and help me. I believe I need this right to get root on my device?
Click to expand...
Click to collapse
I haven’t seen any root for 955u/1 models for Oreo yet the only root I’ve seen on the s8 running Oreo is the carrier versions and the international models

NewDev4IOS said:
Honestly I do not know all I have is a 955u1 and am unable to test for other models as I don’t have any others, and now since bootloader version 3 is out for the 955u1 it is the end of carrier switching unless there is a workaround found in the near future.
This should still work as long as you keep the device on the same bootloader v2 and not Flash any v3 bootloader Firmware as that will definitely brick the device from what I’ve heard of v3 bootloaders
I’m guessing your friend must have flashed firmware running bootloader v3 on it
(To tell what BL ver. The firmware contains look at the 5th character from the end and it is should be a number like xxx1xxxx or xxx2xxxx etc...) and if it was a 3 then that would be why as that firmware will brick the phone if it’s flashed on a different model (until there is a workaround)
Sorry for any late replies been really busy lately
Click to expand...
Click to collapse
I greatly appreciate your response, is it any possible way to fix it? right now it won't power up, not even in bootload mode, nor recovery.

Change CSC in Multi CSC ROM without root knox=0

Hi guys, I flash BTU Rom to change my CSC to receive orio faster. after 1 month Samsung rollout orio for my country (Iran) so I have decided flash again my phone because THR rom has Persian calendar, but after flashing my phone I see my phone CSC set on LYS , after search on internet I found out Samsung multi CSC Roms have default CSC , and you can not change it easily.
so I search forums and can't find anything useful until seeing a way in Persian site and it Assured me it is possible. ok talking enough go to work
combination file works. It's a unique file and not available easily, so every website is taking advantage of it by making it paid, some sites charging per file!
I provide combination file for s7 orio file in my host but it is available just for 13 days from today if someone can upload it to Mediafire or something else it is wonderful.
Prerequisite:
*Official ROM from Sammobile that contains the CSC you want
*Combination file for your phone
*Original/Genuine USB Cable, don't use 3rd party cable or you will have a nice expensive brick if a connection is lost.
*Charge your phone/laptop. 50% is fine.
*Remove SIM & SD Card.
*Patience.
*Important- BACKUP. Use Smartswitch (Faster) OR Samsung Cloud Backup. Remember, you won't be able to restore everything (Apps) if you backup from Nougat & then restore it on 6.0.1, so backup with all the options available.
*Balls of Steel--Kidding
1- Download the latest Combination file '500MB' at the bottom from https://firmware.gem-flash.com/ it for s7 G930D/FD http://fs2.filegir.com/akpa/COMBINA...1296_REV00_user_mid_noship.tar.md5-id88783.7z
2- Flash the official ROM from Sammobile that contains the CSC you want. so I used the latest THR firmware available from Sammobile.
3- After flashing the official ROM, Do a Factory Wipe.
2. Fire up Odin, I used Odin 3.13.1. Extract and select Combination file you downloaded in AP AND your country CSC file from official ROM. Two files only.
4. After successful flashing is done, wait for the phone to boot up, it will go into diagnostic/Factory mode, don't panic.
5- Tap Factory IMEI and enter the code *#243203855# ,it will show you a list of available CSCs, choose the one you need and tap install, the phone will reset/restart.
6- Just in case, do one more Factory/Cache Wipe.
7- Power off the phone & enter download mode and Flash it with your country's official ROM. Four files (BL+AP+CP+CSC) Use CSC, don't use Home_CSC.
8- Knox Zero. System Status: Official
9- You can check your active CSC in recovery mode or use Phone info app.
sorry for my bad English.
*be careful the combination build number like G930FXXU2ARA2 and freamware build number like G930FXXU2EREM . the red number must be equal.
**if you have a problem in step 3 you can flash the ap and CSC separately after flash two file, go to recovery with power + home + volume+ after finish the erasing operation select reboot to system.
*** if in step 5 your list is empty, go to downloading mode flash CSC File from your ROM(not home_CSC) and go to recovery with power + home + volume+ after finish the erasing operation select reboot to system.
****if you break your phone don't afraid just go to downloading mode and flash official rom.
Let me know if you face any issues or were successful. It will help others.

Hope this works

It is working, wow!

akpa said:
Hi guys, I flash BTU Rom to change my CSC to receive orio faster. after 1 month Samsung rollout orio for my country (Iran) so I have decided flash again my phone because THR rom has Persian calendar, but after flashing my phone I see my phone CSC set on LYS , after search on internet I found out Samsung multi CSC Roms have default CSC , and you can not change it easily.
so I search forums and can't find anything useful until seeing a way in Persian site and it Assured me it is possible. ok talking enough go to work
combination file works. It's a unique file and not available easily, so every website is taking advantage of it by making it paid, some sites charging per file!
I provide combination file for s7 orio file in my host but it is available just for 13 days from today if someone can upload it to Mediafire or something else it is wonderful.
Prerequisite:
*Official ROM from Sammobile that contains the CSC you want
*Combination file for your phone
*Original/Genuine USB Cable, don't use 3rd party cable or you will have a nice expensive brick if a connection is lost.
*Charge your phone/laptop. 50% is fine.
*Remove SIM & SD Card.
*Patience.
*Important- BACKUP. Use Smartswitch (Faster) OR Samsung Cloud Backup. Remember, you won't be able to restore everything (Apps) if you backup from Nougat & then restore it on 6.0.1, so backup with all the options available.
*Balls of Steel--Kidding
1- Download the latest Combination file '500MB' at the bottom from https://firmware.gem-flash.com/ it for s7 G930D/FD http://fs2.filegir.com/akpa/COMBINA...1296_REV00_user_mid_noship.tar.md5-id88783.7z
2- Flash the official ROM from Sammobile that contains the CSC you want. so I used the latest THR firmware available from Sammobile.
3- After flashing the official ROM, Do a Factory Wipe.
2. Fire up Odin, I used Odin 3.13.1. Extract and select Combination file you downloaded in AP AND your country CSC file from official ROM. Two files only.
4. After successful flashing is done, wait for the phone to boot up, it will go into diagnostic/Factory mode, don't panic.
5- Tap Factory IMEI and enter the code *#243203855# ,it will show you a list of available CSCs, choose the one you need and tap install, the phone will reset/restart.
6- Just in case, do one more Factory/Cache Wipe.
7- Power off the phone & enter download mode and Flash it with your country's official ROM. Four files (BL+AP+CP+CSC) Use CSC, don't use Home_CSC.
8- Knox Zero. System Status: Official
9- You can check your active CSC in recovery mode or use Phone info app.
sorry for my bad English.
*be careful the combination build number like G930FXXU2ARA2 and freamware build number like G930FXXU2EREM . the red number must be equal.
**if you have a problem in step 3 you can flash the ap and CSC separately after flash two file, go to recovery with power + home + volume+ after finish the erasing operation select reboot to system.
*** if in step 5 your list is empty, go to downloading mode flash CSC File from your ROM(not home_CSC) and go to recovery with power + home + volume+ after finish the erasing operation select reboot to system.
****if you break your phone don't afraid just go to downloading mode and flash official rom.
Let me know if you face any issues or were successful. It will help others.
Click to expand...
Click to collapse
I tried this and failed ... I got bootloader exception error
Btw, which red numbers must be equal ?
Nevermind, it wasn't displaying red color in the app but it did in my browser. I know bootloader must be same.. I tried this method before you posted, but odin fails at hidden.img and when I boot the phone I get bootloader exception error. Thats quite scary error if you don't know how to bypass it. And ofcourse bootloader version of combination and normal firmware was the same, still I could not succeed.. any thoughts ?
Sent from my S7 Edge using XDA Labs

akpa said:
Hi guys, I flash BTU Rom to change my CSC to receive orio faster. after 1 month Samsung rollout orio for my country (Iran) so I have decided flash again my phone because THR rom has Persian calendar, but after flashing my phone I see my phone CSC set on LYS , after search on internet I found out Samsung multi CSC Roms have default CSC , and you can not change it easily.
so I search forums and can't find anything useful until seeing a way in Persian site and it Assured me it is possible. ok talking enough go to work
combination file works. It's a unique file and not available easily, so every website is taking advantage of it by making it paid, some sites charging per file!
I provide combination file for s7 orio file in my host but it is available just for 13 days from today if someone can upload it to Mediafire or something else it is wonderful.
Prerequisite:
*Official ROM from Sammobile that contains the CSC you want
*Combination file for your phone
*Original/Genuine USB Cable, don't use 3rd party cable or you will have a nice expensive brick if a connection is lost.
*Charge your phone/laptop. 50% is fine.
*Remove SIM & SD Card.
*Patience.
*Important- BACKUP. Use Smartswitch (Faster) OR Samsung Cloud Backup. Remember, you won't be able to restore everything (Apps) if you backup from Nougat & then restore it on 6.0.1, so backup with all the options available.
*Balls of Steel--Kidding
1- Download the latest Combination file '500MB' at the bottom from https://firmware.gem-flash.com/ it for s7 G930D/FD http://fs2.filegir.com/akpa/COMBINA...1296_REV00_user_mid_noship.tar.md5-id88783.7z
2- Flash the official ROM from Sammobile that contains the CSC you want. so I used the latest THR firmware available from Sammobile.
3- After flashing the official ROM, Do a Factory Wipe.
2. Fire up Odin, I used Odin 3.13.1. Extract and select Combination file you downloaded in AP AND your country CSC file from official ROM. Two files only.
4. After successful flashing is done, wait for the phone to boot up, it will go into diagnostic/Factory mode, don't panic.
5- Tap Factory IMEI and enter the code *#243203855# ,it will show you a list of available CSCs, choose the one you need and tap install, the phone will reset/restart.
6- Just in case, do one more Factory/Cache Wipe.
7- Power off the phone & enter download mode and Flash it with your country's official ROM. Four files (BL+AP+CP+CSC) Use CSC, don't use Home_CSC.
8- Knox Zero. System Status: Official
9- You can check your active CSC in recovery mode or use Phone info app.
sorry for my bad English.
*be careful the combination build number like G930FXXU2ARA2 and freamware build number like G930FXXU2EREM . the red number must be equal.
**if you have a problem in step 3 you can flash the ap and CSC separately after flash two file, go to recovery with power + home + volume+ after finish the erasing operation select reboot to system.
*** if in step 5 your list is empty, go to downloading mode flash CSC File from your ROM(not home_CSC) and go to recovery with power + home + volume+ after finish the erasing operation select reboot to system.
****if you break your phone don't afraid just go to downloading mode and flash official rom.
Let me know if you face any issues or were successful. It will help others.
Click to expand...
Click to collapse
the link does not work

Hi all,
I was not able to flash combination and CSC together...When trying in two steps, it didn't work neither...after having flashed CSC and rebooted, the update failed with a message like "invalid carrier" or something like that...No way to select a different CSC from factory firmware...
Finally, the following method worked for me:
https://forum.xda-developers.com/ga...to-change-s9-s9-csc-model-csc-t3870836/page32

lklock said:
Hi all,
I was not able to flash combination and CSC together...When trying in two steps, it didn't work neither...after having flashed CSC and rebooted, the update failed with a message like "invalid carrier" or something like that...No way to select a different CSC from factory firmware...
Finally, the following method worked for me:
https://forum.xda-developers.com/ga...to-change-s9-s9-csc-model-csc-t3870836/page32
Click to expand...
Click to collapse
Which firmware you are on? I tried with COMBINATION_FA60_G935FXXU6ASH2 but when I put command "AT+PRECONFG=1,0"
The return is.
+PRECONFG:0,CSC FAIL
OK
I didn't use RealTerm because it cannot connect so I use PuTTY on port: COM3(which found in ODIN)
---------- Post added at 05:09 PM ---------- Previous post was at 05:06 PM ----------
I about to give up but just go ahead with only command "AT+PRECONFG=2,[CSC]" and it work!!.
I got VoLTE VoWiFi.

G9650 (Snapdragon) CSC Change/ Stock firmware change (NON ROOT)

Hi everyone,
Recently I flashed a stock ROM on my SM-G9650 and wandered around quite some time before gathering all the information to flash the firmware. Now I’m here gathering most (if not all) the information anyone might need to flash stock firmware to your device. This method does NOT require root and does NOT trip KNOX
First of all:
-Disclaimer-
I will not be responsible if your device gets bricked. PROCEED AT YOUR OWN RISK. This is a guide, and even though its pretty straight forward, stuff happens.
Now, onto flashing the device:
A few prerequisites prior to flashing the device:
- ODIN (latest): https://odindownload.com/
- USB Drivers for Samsung: https://developer.samsung.com/galaxy/others/android-usb-driver-for-windows
- An ORIGINAL Cable for your device (Preferably the one that came with it).
- WinRAR or 7zip
- A backup of your data (Optional)
- Patience and time
Ok, now onto the flashing:
First things first: this is a guide for the G9650 (Hong Kong) Variant with UNLOCKED bootloader. If your device model is different, find a thread according to your device.
1- Go to: https://www.sammobile.com/forum/threads/40735-Galaxy-S9-G960-multi-CSC-pit-language , and find the correct Multi CSC for your country/Region. (I live in the Caribbean but chose to use ZTO because it has LTE+ and VoLTE, and the only bloatware is Word, Excel, PowerPoint, LinkedIn and One Drive.). Once you find your CSC, head over to https://www.sammobile.com/firmwares/ and download your desired Firmware. Here is a link for CSC code meaning: https://www.androidsage.com/2017/07...specific-product-code-csc-and-country-region/
2- Once downloaded, create a folder on your desktop and move the zip file to it, then extract. (You can choose any folder you want, I recommend desktop because it is easier to find)
3- Install the USB Drivers previously downloaded.
4- Reboot your pc (By actually opening windows and clicking reboot.)
5- Open Odin and search for the folder you placed the Firmware in.
6- Load BL, AP, CP and CSC (NOT HOME_CSC) onto the correct slots.
Now onto the phone part:
1- Unlock your phone and go to Samsung switch.
2- Back up your data. (If you do not have personal data, then skip)
3- Factory reset the phone, through the settings option.
4- Wait for the phone to boot into the welcome screen.
5- Turn off the device
6- While holding down the Bixby button and the volume up, press the power
7- When the Samsung logo shows, let go of the power and Bixby buttons. Keep holding the Volume up button until you boot into recovery.
8- With the navigation keys, factory reset the phone, once completed, wipe cache and data.
9- Turn off the device.
10- Turn on the device while holding down the Bixby button and volume down. Once the Samsung logo shows, let go of the Bixby button. Keep holding the volume down.
11- Once in the download mode (blue screen with an android), let go of the volume down. Press volume up to select download mode.
Back to the PC part:
1- Once the device is in download mode, connect it via cable and wait for ODIN to recognize it. (a blue box indicating COM port is the indicator that ODIN has recognized the device)
2- Since the BL, AP, CP and CSC have been loaded onto the correct slots, and the device is connected and recognized, go into options and make sure that Auto Reboot and F. Reset time are checked.
3- Press start and BE PATIENT AND CAREFULL, Flashing a firmware takes time. If your cable breaks connection with ODIN, YOU MAY brick your device.
4- Once completed, your phone will boot up on its own, reboot it manually.
Congratulations, you have just flashed a stock, almost bloatware free Samsung Firmware.
If you have any question, feel free to ask.
- To Mods and Admins: Forgive me if I break any rules, this is my first thread. Just let me know what went wrong and I will fix it ASAP
Resources:
https://android.stackexchange.com/questions/176515/what-do-the-terms-bl-ap-cp-and-csc-mean-in-odin
https://developer.samsung.com/galaxy/others/android-usb-driver-for-windows
https://www.sammobile.com/forum/threads/40735-Galaxy-S9-G960-multi-CSC-pit-language
https://www.sammobile.com/firmwares/
https://www.androidsage.com/2017/07...specific-product-code-csc-and-country-region/
Thanks:
@murtaza02
@Incarniac
@Kimbaroth
@auky
@baderfgt
 @shaggyskunk
- Credit must be given where credit is due.
If I helped you, click that thanks button.

Awesome work, thank you for sharing this info with the rest of the world!!! =D

@lukesky1313
You might want to consider changing the links you have posted for Odin - The latest version is 3.13.1 - The xda link has Odin 3.10.6 and the first Odin link has 3.12.x
Sammobile.com is one of the more reliable sources for Firmware & They conveniently have a link to Odin 3.13.1 as well..
XDA also has a link to the latest version of Odin here:
https://forum-xda--developers-com.c.../odin-available-3-13-1-oreo-fws-t3755957/page
It's strongly recommended to use Odin 3.13.1 to Flash Oreo Firmware ??
Sent from my Galaxy S9+ using XDA Labs

shaggyskunk said:
@lukesky1313
You might want to consider changing the links you have posted for Odin - The latest version is 3.13.1 - The xda link has Odin 3.10.6 and the first Odin link has 3.12.x
Sammobile.com is one of the more reliable sources for Firmware & They conveniently have a link to Odin 3.13.1 as well..
XDA also has a link to the latest version of Odin here:
https://forum-xda--developers-com.c.../odin-available-3-13-1-oreo-fws-t3755957/page
It's strongly recommended to use Odin 3.13.1 to Flash Oreo Firmware ??
Click to expand...
Click to collapse
The link i posted has ODIN 3.13.1, when you open it in the browser (request desktop site on mobile), under the first image is the button for it. I used that link and said (Latest) so that when you head there you get the latest odin. Also, the link for the firmware is sammobile . I now see that its not very intuitive so i will add the link for the firmware (just have to type the device model and download the desired firmware. Thanks for the heads up

Can I use this guide for my S9+ exynos version G965F?

rename_nick said:
Can I use this guide for my S9+ exynos version G965F?
Click to expand...
Click to collapse
You can follow these steps but refer to the G965F thread for your appropiate firmware version

Hi,
I try to flash stock rom follow this guide but CSC of my phone is not changed. it still is TEL instead of XXV.
I flashed Vietnam XXV from: https://www.sammobile.com/firmwares/galaxy-s9-plus/SM-G965F/XXV/download/G965FXXU1BRF8/223940/

rename_nick said:
Hi,
I try to flash stock rom follow this guide but CSC of my phone is not changed. it still is TEL instead of XXV.
I flashed Vietnam XXV from: https://www.sammobile.com/firmwares/galaxy-s9-plus/SM-G965F/XXV/download/G965FXXU1BRF8/223940/
Click to expand...
Click to collapse
Did you use CSC and NOT home CSC?

lukesky1313 said:
Did you use CSC and NOT home CSC?
Click to expand...
Click to collapse
Yes, I used CSC not HOME_CSC

I have been out of the Android game since the S7 Edge. I just swapped from iPhone 8+ to a S9+ and love it so far. Question I have is which firmware can I use to debloat my S9+? It's on T-Mobile and I dl the stock firmware from the posted link but I don't think this is the debloated firmware. Any help would be appreciated as I don't know what all this CSC stuff is.

AUSTIN3:16 said:
I have been out of the Android game since the S7 Edge. I just swapped from iPhone 8+ to a S9+ and love it so far. Question I have is which firmware can I use to debloat my S9+? It's on T-Mobile and I dl the stock firmware from the posted link but I don't think this is the debloated firmware. Any help would be appreciated.
Click to expand...
Click to collapse
What is your device model?

rename_nick said:
Yes, I used CSC not HOME_CSC
Click to expand...
Click to collapse
Your previous CSC was TEL? Is it grouped with the VXX in the multi CSC?

lukesky1313 said:
What is your device model?
Click to expand...
Click to collapse
SM-G965U

AUSTIN3:16 said:
SM-G965U
Click to expand...
Click to collapse
I would highly recommend searching the forums for your variant since it is a Snapdragon and probably has locked bootloader. This guide is for G9650, even though the process is basically the same.

I'm familiar with how to flash with Odin but just don't know what debloated stock ROM is compatible.
---------- Post added at 11:26 PM ---------- Previous post was at 11:24 PM ----------
I don't see a section dedicated to just the T-Mobile version on the S9+.
---------- Post added at 11:27 PM ---------- Previous post was at 11:26 PM ----------
I don't see a section dedicated for just the T-Mobile version of the S9+.

AUSTIN3:16 said:
I'm familiar with how to flash with Odin but just don't know what debloated stock ROM is compatible.
Click to expand...
Click to collapse
Make sure the downloaded model matches your device model. For a US variant its pretty hard to find one since most (if not all) put some kind of bloat on them. Search for: Bloat free firmware g965U, and look around.

lukesky1313 said:
Make sure the downloaded model matches your device model. For a US variant its pretty hard to find one since most (if not all) put some kind of bloat on them. Search for: Bloat free firmware g965U, and look around.
Click to expand...
Click to collapse
Ok Thanks!

AUSTIN3:16 said:
Ok Thanks!
Click to expand...
Click to collapse
If you need anything else, you're welcome to come back.
Don't forget to thank!

I bought an unlocked s9+ from ebay and later found out that its country sale came from Panama. My canadian GSM network does work on the device, but certain apps like samsung members show spanish promotions or samsung pay not being available.*
Can the csc code and country be changed in this case so i am able to get the canadian setting and access.
Model: SM-G9650
CPU: Snapdragon 845
Disclaimer: i have never tried alteration of any phone before so im new to this.

JULY Security update for ZTO (G9650) now available

Stuck in a loop between custom binary blocked and downloading do not turn off

I turned off and then restarted the developer's mode in my S7 yesterday. When I went to turn it on today, I got the message "Custom binary blocked by FRP Lock. I used power / start / vol down holding all three and came to a screen that wanted to know if I wanted to download (probably Odin). I then pushed two buttons of which one was the start button (the one in the middle of the bottom) and the vol up button, which started the phone trying to download. It got the message Downloading "Do not turn off target". I figured out how to stop that, but when the phone rebooted, it was back to "Custom binary Blocked ..."
The information I need to download firmware (like the CSC), is either in my phone or not common enough to exist in the country lists with their respective phone companies. My phone is an S7 and probably a G930F, although I can't verify that because I can't get into the phone. I would not mind downloading Odin, but I understand that the information regarding CSC_home with regard to who my provider is and what country I'm in is necessary in order to install Odin and I don't know how to find that information or to find the complete model number for the phone.
Thank you for any advice you can give me. I would prefer not to have to use a factory reset on the phone to get it up and running again.

Changing OEM Lock does trigger FRP sometimes, like 2 years ago my friend had the same on his Note5, it wasn't that hard to solve.
You need to verify your device model (written in the download mode's top left corner), then download a recent firmware, flash it via Odin, after booting, it'll ask you about your Google account and in some cases, your Samsung account, too.
Unless you've forgotten them, you should be good.

Mohamedkam000 said:
Changing OEM Lock does trigger FRP sometimes, like 2 years ago my friend had the same on his Note5, it wasn't that hard to solve.
You need to verify your device model (written in the download mode's top left corner), then download a recent firmware, flash it via Odin, after booting, it'll ask you about your Google account and in some cases, your Samsung account, too.
Unless you've forgotten them, you should be good.
Click to expand...
Click to collapse
Thanks very much. I got the info off the download screen.
Do you mean I should go ahead and download Odin and then hope to find the right firmware? That's giving me part of the problem. I downloaded two different versions of Odin
3_v3.11.1
3_v3.12.3
I think to get the right firmware, I would need to know the country 3-letter code, if the phone is dual sim or not and the service provider? Since my service provider is not among those listed (like telekom or O2), can I use "unbranded" for my country? Or is this information for the CSC entry something my provider could provide?
Also, if I enter that into CSC, will I still have the option for Home_CSC? I'm quite interested in trying to keep my data.
And finally, I don't think I set up any account which had to do with the cloud. If an account was needed to verify the operating system, then I hope to be able to figure out what that was.

nidozu said:
Thanks very much. I got the info off the download screen.
Do you mean I should go ahead and download Odin and then hope to find the right firmware? That's giving me part of the problem. I downloaded two different versions of Odin
3_v3.11.1
3_v3.12.3
I think to get the right firmware, I would need to know the country 3-letter code, if the phone is dual sim or not and the service provider? Since my service provider is not among those listed (like telekom or O2), can I use "unbranded" for my country? Or is this information for the CSC entry something my provider could provide?
Also, if I enter that into CSC, will I still have the option for Home_CSC? I'm quite interested in trying to keep my data.
And finally, I don't think I set up any account which had to do with the cloud. If an account was needed to verify the operating system, then I hope to be able to figure out what that was.
Click to expand...
Click to collapse
It doesn't matter. Any firmware will get your phone booting, that's the point, if it was FRP cause you forgot the Google account, then perhaps you should be picky, but since you're not, then it's fine.
CSC gets activated when the phone detects your SIM card, that's how it knows where you are and that's how it sets CSC features provided for your region. If you pulled the SIM out, it won't apply CSC just yet. If you travelled to another country, your CSC will be changed (once you boot into recovery).
What model your phone has, so I can find you some files?

Mohamedkam000 said:
It doesn't matter. Any firmware will get your phone booting, that's the point, if it was FRP cause you forgot the Google account, then perhaps you should be picky, but since you're not, then it's fine.
CSC gets activated when the phone detects your SIM card, that's how it knows where you are and that's how it sets CSC features provided for your region. If you pulled the SIM out, it won't apply CSC just yet. If you travelled to another country, your CSC will be changed (once you boot into recovery).
What model your phone has, so I can find you some files?
Click to expand...
Click to collapse
I'm making some progress. I learned you can get the model number off of the recovery screen which I got to with power / vol up / Home and by waiting for the Recovery screen to appear.
I then found a very close firmware in updato, but the last letter was a y instead of a c, so not the perfect model-number-match. That one with the wrong last letter was for my region in the EU. The actual matching firmware ends with a c and I found that firmware on multiple websites, but listed as being from Thailand.
Now, the strange thing is that I bought the phone in Germany for a trip to Thailand and got it unlocked before I went there. Since I'm in Germany and most likely Telekom, and since I've read to trust no website except Updato, which doesn't have the firmware for my exact model number, I've been wondering how to proceed?
You asked for my model numberOne of the non-Updato websites offers the firmware with a checksum with the file, but since updato doesn't have that firmware file, I couldn't know if the checksum was the right one.
So I think what you asked for was the model which is G930FXXU1DQHC
Thanks very much.

nidozu said:
So I think what you asked for was the model which is G930FXXU1DQHC
Thanks very much.
Click to expand...
Click to collapse
That's a very old firmware, it has U1, latest has U8, I had the same device, too.
A trusted, reliable site would be AFH, search for G930F and find large files, that's the firmware.

Hi,
I found the big file of 1.8 gb called G930FXXU1DQHC_DevBase_v4.3.zip and downloaded it and extracted it to a folder I created myself called odin. It's not what I was expecting. It is a whole lot of folders within folders within folders, but none of the files that I would expect to be able to click on for an installation by odin. I was actually expecting three files that were clickable, which I've seen in instructions that utilize Odin to flash the firmware.
The two main folders it produced were ALEXNDR and META-INF. There's a single file at the same level as these two folders called options.prop.
Edit, I will try to attach a screen shot of what I was expecting to get.
More Edit: I'm not finding an installation file, so I think I'm at the point where I need to install Odin, but I don't know whether I install it on my pc or on my phone and if I should install that before I install the firmware. That's the point, isn't it? That Odin is in place to install the firmware?
Also, I can't see any exe files in the zip file I extracted, so I don't know what could be installed.
What is it I should be looking for?
Thank you. You're helping me keep going.

I see you did not get what U1 and U8 means. For an example, this is the latest firmware for Galaxy S7.
But, you downloaded a U1 firmware, which is very old to be believed. Forget about that, download this one, extract it, and flash it via Odin.

Thank you for that information.
The short version: I'm back in! All the stuff below is my journey which was rocky. Had to do some more internet searches, which brought me to another thread here in the forum:
Can't flash firmware, RQT Closed.
Hi! I need help, I was trying to flash Indian firmware (latest) on my Note8 (N950FD) with french rom. But when tried to flash the rom with Odin, start the procces and less than a minute, finished and appears as success, but nothing happened...
forum.xda-developers.com
For others who come after me:
I downloaded the firmware files, started Odin, put the phone in download mode (power / vol down / home), then plugged the phone into the computer and clicked on the boxes one at a time in Odin and was directed to firmware files in Windows Explorer and clicked on the correct one. I wanted to save my data so in the box called Userdata, I entered the CSC_Home file. They were all accepted. Then I clicked on Start in Odin and after a short time, the scrolling of files on the left side ended. That's where the above link comes in which says to try using a more recent Odin, so I tried again with Odin 3.13.1 (with the Chinese figures).
This attempt went better, took longer and then my phone sat and blinked Samsung at me for a very long time. I finally turned Odin off with Exit and then waited some more while the phone was still plugged into the computer. Then it started installing what it had downloaded. At least by now the little Android robot wasn't keeling over anymore.
After that finished, it asked for my pin and accepted it and I got back to the home screen. It then asked if this was my phone number, which it was. And I could see! that it had a charge of 44%.
I then went into Settings and looked for the developers setting and found that OEM was indeed turned off and that probably caused the FRP lock to occur. I turned the developers setting off for now.
I was able to keep my data with one annoyance. Some of the less standard apps are giving me a pop-up when I open them that says the apps are always on, do I want to close them, and there's a feedback button which simply shuts the popup off. You have to keep turning this off. It seems to affect non-standard apps, so I may have to reinstall those. I'll look into that ... tomorrow.
Many many thanks! It was so great to find someone who knew how to help me! I really appreciate it.

How To Guide Guide to root Galaxy S22 Ultra (B/E/N/0), unlock bootloader and flash official firmware (noob friendly)

Code:
Your warranty is now void.
If you root your device, Your KNOX status will be tripped.
You can still pass the safety net after you root if you follow the instructions.
Sorry for USA models, you can't root unless you can unlock your bootloader
You will lose ALL your data if you unlock your bootloader. Do back up your data.
I am not responsible for bricked devices, or dead SD cards although it is not possible
Please do some research if you have any concerns about doing this to your device
How to flash official firmware? (not the root and unlock bootloader part!)
You will need:
A Galaxy S22 Ultra and common sense
Samsung Odin (the flashing tool of the official firmware)
https://dl2018.sammobile.com/Odin3-v3.14.1.zip
You need to extract the zip file and you are going to use the file Odin3_v3.14.1.exe inside the folder.
Samsung Android USB Driver for Windows
Samsung Android USB Driver | Samsung Developers
You need the driver only if you are developing on Windows and want to connect a Samsung Android device to your development environment over USB.
developer.samsung.com
Double-click and install the exe file.
Optional: If you just want to change CSC, /efi/imei/mps_code.dat is where you can edit after rooting the phone
Replace the CSC you would like to be in the file
If you like to download the firmware of your carrier, follow the instructions bellow
Release 1.0.3 · zacharee/SamloaderKotlin
Contribute to zacharee/SamloaderKotlin development by creating an account on GitHub.
github.com
Download the platform you want to download to. (Windows)
You need to extract the zip and double-click open the file Bifrost.exe inside the folder.
You need to fill in the Model, and Region, press the Check for Updates button and the Download button.
How to find the Model: on your phone → Settings → About Phone → The third row says the Model number and you need to remove the part with the part of /xx, for example, SM-S908B/DS and you only need to type SM-S908B
How to find the Region: You can check the Region at this link https://samfrew.com/model/SM-S908B/
You need to find find a three-letter word depending on your carrier and country and type it in Bifrost, for example, EVR
Press the Check for Update button and download it with the Download button.
Put it to a place you can easily find, ie. Desktop.
After downloading it, find the file SM-xxxxx_x_xxxxxxxx_xxx.zip.enc4 on the place you put it and change the document format from .enc4 to .zip. Then, double-click and extract the file.
Open Odin3_v3.14.1.exe and turn off your phone. Connect a side of your USB to your PC/Laptop, and keep pressing volume up and down together until you go to Download Mode. Put another side of the USB into your phone. When you arrive at Download Mode press volume up. Go back to Odin3_v3.14.1.exe:
-Click on BL and select BL_xxxxxxxxxx.tar.md5
-Click on AP and select AP_xxxxxxxxxxx.tar.md5
-Click on CP and select CP_xxxxxxxxxx.tar.md5
-Click on CSC and select CSC_OMC_xxxxxxxxxx.tar.md5
Optional: add PIT file if you have to repartition.
Press Start to flash the firmware, after that is done, your device will automatically reboot to the system.
How to unlock the bootloader?
Go to your phone → Settings → About Phone → Software information → Press Build number 6 times until you see the notice “You’re now a developer”
Go in Settings → Developer options → enable OEM unlocking
Power off your phone first. Then, connect a side of your USB to your PC/Laptop, press Vol Up + Down and then plug in the USB while keeping Vol Up+Down pressed.
When you arrive at Download Mode, long press volume up until you see the black screen. Confirm to unlock the bootloader and you will erase your device.
How to root your phone?
After you unlock your bootloader, you set up your phone and ensure you do not sign in to your Google account first. Install Magisk https://github.com/topjohnwu/Magisk/releases/download/v24.1/Magisk-v24.1.apk on your phone. You need to allow the app to install other apps so that you can install the apk.
Transfer AP_xxxxxxxxxx.tar.md5 in the firmware you download from your PC/Laptop to your phone.
Open Magisk on your phone and press the install button in the Magisk column. Select 'Select and Patch a File', 'Let's Go and find the AP_xxxxxxxxxx.tar.md5 and select it. You can have a cup of coffee if you like when you waiting for the patching of the file.
After finishing the patching, transfer the file magisk_patched-24xxx_xxxxx.tar in the Downloads folder back to your PC/Laptop.
Turn off your phone. Connect a side of your USB to your PC/Laptop, and keep pressing volume up and down together until you go to Download Mode. Put another side of the USB into your phone. When you arrive at Download Mode press volume up. Open Odin3_v3.14.1.exe on your PC/Laptop:
Click on BL and select BL_xxxxxxxxxx.tar.md5
-Click on AP and select magisk_patched-24xxx_xxxxx.tar
-Click on CP and select CP_xxxxxxxxxx.tar.md5
-Click on CSC and select CSC_OMC_xxxxxxxxxx.tar.md5
Optional again: add PIT file if you have to repartition
When it finishes flashing, it will automatically reboot and you can gain root access.
Optional: If you want to have the safety net passed (most of the banking apps use it), then you need to install the zip
as a Magisk module in Magisk https://github.com/kdrag0n/safetynet-fix/releases
How? Go to Magisk → Modules → install from storage and select the zip you downloaded.
How to update the system without losing roots and data?
Download the new firmware of the phone and update the Magisk App if it is not up to date. Unzip the firmware you download and transfer the AP file to your phone. Patch your AP file and transfer it back to your PC (in /sdcard/Download)
Power off the phone and reboot to Download mode
Open Odin and put the new magisk_patched file in the AP slot, the BL and CP from your new firmware into their respective slots and importantly *HOME_CSC* into the CSC slot.
Press start and let Odin do its stuff.
When flashed, do not wipe.
Press and hold Vol-down and Power
As soon as the screen appears, let go of all buttons.
Within moments without any further user intervention your phone will reboot into your updated Magisk rooted mode, data intact.
Credits to:
Magisk and all the develpers
jult for informing me about the errors

Thanks, still waiting for s22u and firmware(BRI/sm-s9080).
Edit: The firmware has come up.

donkeyman1234 said:
Thanks, still waiting for s22u and firmware.
Click to expand...
Click to collapse
The time of downloading the firmware is quite long, please be patient

It gives me an error when I try to check for updates. It's the EUX version.

acbdo6 said:
It gives me an error when I try to chek for updates. It's the EUX version.
Click to expand...
Click to collapse
I am looking into the problem, please wait

acbdo6 said:
It gives me an error when I try to check for updates. It's the EUX version.
Click to expand...
Click to collapse
I think you may need to download the file at this link, although it will be slower. Usually, the app always works. Sorry
Download Samsung Galaxy S22 Ultra SM-S908B EUX Europe S908BXXU1AVA7 firmware
Fast download latest Samsung Galaxy S22 Ultra firmware SM-S908B from Europe with S908BXXU1AVA7 and Android version 12
www.sammobile.com

This will work on the Verizon version?

lucky_strike33 said:
This will work on the Verizon version?
Click to expand...
Click to collapse
I have a look at the internet and I think maybe you will need some service like that https://forum.xda-developers.com/t/sampwnd-usa-model-bl-unlock-info-u-u1-w.4201689/ if you cannot unlock the bootloader by following the guide

My s22ultra is SM-S908B EUX and I want to flash the Indonesian XID firmware which is OLE and SM-S908E. Is this possible?

gpap2004 said:
My s22ultra is SM-S908B EUX and I want to flash the Indonesian XID firmware which is OLE and SM-S908E. Is this possible?
Click to expand...
Click to collapse
you need to use the firmware of the same model number but you can use the firmware from different country

Williamtung said:
you need to use the firmware of the same model number but you can use the firmware from different country
Click to expand...
Click to collapse
Looks like Samsung changed some things there. XID firmware was available for flashing to my ex - S21 ultra . Now , in S22 ultra, I see different types of regions (SM-S908E and SM-S908B).

gpap2004 said:
Looks like Samsung changed some things there. XID firmware was available for flashing to my ex - S21 ultra . Now , in S22 ultra, I see different types of regions (SM-S908E and SM-S908B).
Click to expand...
Click to collapse
emmm... i'm not really sure about it now. maybe you can have a try then
[edit]: I have a look at the internet and I think it is all right if you use firmware of a different model. Of course, the spec should be similar/the same

Williamtung said:
emmm... i'm not really sure about it now. maybe you can have a try then
Click to expand...
Click to collapse
Yeah, but I'm afraid. I would not like to brick the phone. Except the all procedure stops from Odin and avoid bricking.

gpap2004 said:
Yeah, but I'm afraid. I would not like to brick the phone. Except the all procedure stops from Odin and avoid bricking.
Click to expand...
Click to collapse
you won't likely brick your device because I have taken a look and both devices are identical. So, I think it is fine to flash

Williamtung said:
you won't likely brick your device because I have taken a look and both devices are identical. So, I think it is fine to flash
Click to expand...
Click to collapse
This is great! Thanks ! Because XID ( Indonesian) firmware supports fully native call recording. Samsung's OTA updates are also available every month.

gpap2004 said:
This is great! Thanks !
Click to expand...
Click to collapse
you are welcome

I just made a research to the internet and I found that SM-S908E is probably different variant from SM-S908B .
SM-S908E is a snapdragon edition while SM-S908B is Exynos.
So , I think I cannot flash XID firmware for snapdragon edition to an Exynos version
I'm sad now

gpap2004 said:
I just made a research to the internet and I found that SM-S908E is probably different variant from SM-S908B .
SM-S908E is a snapdragon edition while SM-S908B is Exynos.
So , I think I cannot flash XID firmware for snapdragon edition to an Exynos version
I'm sad now
Click to expand...
Click to collapse
Oh, sorry. I haven't noticed about the SoC. The SoC in Europe is Snapdragon. So I don't think you should change it.
If you just want to change CSC, /efi/imei/mps_code.dat is where you can edit. Both firmware is the same except the CSC, no difference between them

My preordered s22u will come with snapdragon (sm-s9080 BRI ), I will use CHC csc, also like to have call recording.

gpap2004 said:
Looks like Samsung changed some things there. XID firmware was available for flashing to my ex - S21 ultra . Now , in S22 ultra, I see different types of regions (SM-S908E and SM-S908B).
Click to expand...
Click to collapse
S908E = snapdragon
S908B = exynos
Some countries have both version listed, you needs to to download one according your device
You can check about phone model number to see which one you own