Development [RECOVERY][UNOFFICIAL] TWRP for Galaxy S21 Ultra 5G (Snapdragon)

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shadyover

Member
Aug 19, 2015
14
3
@afaneh92 I have done all your instructions and all is working very well till now.
SM-G9980 One UI 5.0 Android 13
TWRP flashed, Encryption disabled, Magisk Delta installed.
My urgent question for you is what about the next upcoming firmware update? how I can I maintain the Encryption Disabled and TWRP installed when I flash the next update without loosing data ?? I need detailed steps please for that.

I really admire your work, great thanks to you 🌹
 
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afaneh92

Senior Member
Jul 31, 2012
3,568
5,009
@afaneh92 I have done all your instructions and all is working very well till now.
SM-G9980 One UI 5.0 Android 13
TWRP flashed, Encryption disabled, Magisk Delta installed.
My urgent question for you is what about the next upcoming firmware update? how I can I maintain the Encryption Disabled and TWRP installed when I flash the next update without loosing data ?? I need detailed steps please for that.

I really admire your work, great thanks to you 🌹
I will post instructions soon
 
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afaneh92

Senior Member
Jul 31, 2012
3,568
5,009
Still waiting, I really don't want to redo the exhausting process of formatting and restoring all my data again.
Note: steps 2-6 are important, missing any will lose your data.

1. Load all files to their respective slots in odin, pick HOME_CSC instead of CSC.
2. Uncheck auto reboot in Odin and hit start.
3. Reboot to download if possible from odin options, or using buttons combo.
4. Keep auto reboot unchecked, Flash TWRP in AP slot and vbmeta_disabled.tar in USERDATA
5. Hold volume down and power until the screen goes black then immediately switch to holding volume up and power to reboot into TWRP.
6. Disable encryption:
- Go to Advanced > Terminal, type: multidisabler.
You will see " - Finished." When it is done.
7. flash custom kernel and magisk then reboot to system (optional).
 
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shadyover

Member
Aug 19, 2015
14
3
Note: steps 2-6 are important, missing any will lose your data.

1. Load all files to their respective slots in odin, pick HOME_CSC instead of CSC.
2. Uncheck auto reboot in Odin and hit start.
3. Reboot to download if possible from odin options, or using buttons combo.
4. Keep auto reboot unchecked, Flash TWRP in AP slot and vbmeta_disabled.tar in USERDATA
5. Hold volume down and power until the screen goes black then immediately switch to holding volume up and power to reboot into TWRP.
6. Disable encryption:
- Go to Advanced > Terminal, type: multidisabler.
You will see " - Finished." When it is done.
7. flash custom kernel and magisk then reboot to system (optional).
I already patch AP tar file with Magisk and flash it in Odin with rest of slots with HOME_CSC as mentioned, so step 7 is not needed am I right ?
 

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    home.png
    backupname.png

    Team Win Recovery Project 3.x, or twrp3 for short, is a custom recovery built with ease of use and customization in mind. Its a fully touch driven user interface no more volume rocker or power buttons to mash. The GUI is also fully XML driven and completely theme-able. You can change just about every aspect of the look and feel.

    Code:
     * Your warranty is now void.
    * I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or your getting fired because the alarm app failed. Please
    * do some research if you have any concerns about features included in this ROM
    * before flashing it! YOU are choosing to make these modifications, and if
    * you point the finger at me for messing up your device, I will laugh at you.

    Supported Models:
    Galaxy S21 Ultra G9980, G998U, G998U1 and G998W.

    US/Canada bootloader unlock thread:
    here

    Download & Guide:
    1. Unlock your bootloader.
    2. Download S21 Ultra: p3q.
    3. Reboot to download mode
    4. Put the TWRP TAR for your device with Odin in the AP slot, vbmeta_disabled_R.tar in USERDATA slot and click start.
    5. Reboot to recovery via recovery key combo (Vol up + power + USB connected).
    6. Disable encryption:
    - Go to Advanced > Terminal, type: multidisabler.​
    If vendor complain about free space left on device, will attempt to resize vendor. and it ask to - Run multidisabler again!.​
    - Type: multidisabler again. will see - Finished. when done.​
    - Go back to Wipe > Format Data > type yes.​
    - Reboot to recovery.​
    7. Flash magisk apk in twrp.
    8. Reboot to system, Enjoy.

    Support:
    Live support is available via #twrp on Freenode with your IRC client or just click this link.

    Telegram group

    Bugs:
    - Encryption not fully working.

    Thanks:
    TWRP team
    @ianmacd for multidisabler

    Sources:
    Kernel tree
    Device tree
    3
    it's been forever since i rooted one so I'll wait for the video with instructions or the ffeedback
    😅😅😅
    3
    If anyone wants to get unlocked and rooted hit afaneh92 up he is awesome and he helped me get my s21 ultra snapdragon unlocked and rooted and installed TWRP which is something I really never thought would be possible because I have always knew in recent years that only the international versions of samsung phones would be able to be unlocked so hats off to everyone involved for offering their services and hardwork!
    2
    Great Release :D - Look Forward To Testing Future Versions With You :)
    2
    Should I update to the latest patch T-Mobile?
    If you want to unlock bootloader on US device dont update to V2 bootloader