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

[afaneh92]

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.

 * 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

 

[afaneh92]

Changelog:
15.01.2022 - Update kernel to BUK7
- Fix TWRP boot delay
- Update multidisabler to support new Android 12 fstab
- fstab clean up
29.11.2021 - Update to TWRP 3.6.0
- Add Symlinked dynamic partitions to fstab
- Update multidisabler
- fstab clean up
03.04.2021 - Fix MTP thanks to klabit87.
03.03.2021 - Cleanup recovery fstab.
01.03.2021 - Initial Release.

 

[Britchel0]

it's been forever since i rooted one so I'll wait for the video with instructions or the ffeedback

 

[Xylvion]

Great Release - Look Forward To Testing Future Versions With You

 

[jmac052002]

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!

 

[Britchel0]

Should I update to the latest patch T-Mobile?

 

[rawhide85]

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!

@jmac052002 - I think I am going to follow your advice. I really miss my Nexus 6 for the ease of flashing. Samsung is a great phone but not very flash friendly. Cheers

 

[afaneh92]

Should I update to the latest patch T-Mobile?

If you want to unlock bootloader on US device dont update to V2 bootloader

 

[Britchel0]

If you want to unlock bootloader on US device dont update to V2 bootloader

Thanks I thought so

 

[Rudolpht]

If you want to unlock bootloader on US device dont update to V2 bootloader

I made this mistake so I am SOL

 

[Berserker900]

Hello, will this method work with HK version of SD?
Also once this is used and went well, can i flash Dr. Rom?

 

[afaneh92]

Hello, will this method work with HK version of SD?
Also once this is used and went well, can i flash Dr. Rom?

TWRP yes, ROM no.

 

[Syberkonda]

Wait, the SM-G998U1 has an unlockable bootloader?

 

[afaneh92]

Wait, the SM-G998U1 has an unlockable bootloader?

Yes, currently only bootloader version 1.

 

[zNiiC]

Yes, currently only bootloader version 1.

Is there a way we can find out what bootloader version I have?

 

[afaneh92]

Is there a way we can find out what bootloader version I have?

5th character from the right on build number/baseband version

 

[rawhide85]

If you want to unlock bootloader on US device dont update to V2 bootloader

Best advice we ever got! Thanks @afaneh92

 

[rawhide85]

@afaneh92 - I am in the process of getting all files needed for my S21. Can you point me to the best Magisk for my phone? I have the p3q, Vbmeta_diabled_Rtar , as well as Odin v3.14.4. I think all I am going to need is the drivers. Everything neatly in one folder. Cheers

 

[afaneh92]

@afaneh92 - I am in the process of getting all files needed for my S21. Can you point me to the best Magisk for my phone? I have the p3q, Vbmeta_diabled_Rtar , as well as Odin v3.14.4. I think all I am going to need is the drivers. Everything neatly in one folder. Cheers

Magisk 22 and up, and you need patched odin.

 

[alaindesjardins]

Damn, I just bought my phones and they came with V2 bootloader.