[RECOVERY][UNOFFICIAL] TWRP for Galaxy S20 Series (Snapdragon)

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afaneh92

Senior Member
Jul 31, 2012
3,148
4,726
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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.
Note: My TWRP builds are free I take no money or selling them, The new builds support US devices unlocked before 9 november or added upon request.

Supported Models:
Galaxy S20 Ultra G9880, G988N, G988U, G988U1 and G988W.
Galaxy S20 plus G9860, G986N, G986U, G986U1 and G986W.
Galaxy S20 G9810, G981N, G981U, G981U1 and G981W.

US/Canada bootloader unlock thread:
here

Download & Guide:
1. Unlock your bootloader.
2. Download S20: x1q, S20+: y2q or S20 Ultra z3q.
3. Reboot to download mode and flash vbmeta_disabled.tar in AP slot and reboot. Device will reboot to stock recovery mode prompting you to wipe data so wipe data and reboot to download mode again.
4. Put the TWRP tar for your device with Odin in the AP slot and click start.
5. Reboot to recovery via recovery key combo.
6. Disable encryption:
Or:
- 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.​
7. Go back to Wipe > Format Data > type yes.
8. Reboot to recovery.
9. Flash magisk apk in twrp.
10. Reboot to system, Enjoy.

Note:
To disable encryption manually:
You need to replace fileencryption=ice with encryptable=ice only in userdata line (maybe rest lines) in vendor/etc/fstab.qcom
To avoid stock recovery restoration manually:
Rename system/recovery-from-boot.p to recovery-from-boot.p.bak
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
@jesec for kernel source and unlock guide
@ianmacd for multidisabler
@sac23 and @elliwigy for testing on S20 Ultra G988U and G986U

Sources:
Kernel tree
Device Tree:
x1q
y2q
z3q
 
Last edited:

afaneh92

Senior Member
Jul 31, 2012
3,148
4,726
Changelog:
29.11.2021 - Update to TWRP 3.6.0
- Add Symlinked dynamic partitions to fstab
- Updated to latest kernel source
- Update multidisabler
- fstab clean up
- Fix haptic feedback
03.03.2021 - Update to latest TWRP source
- Add terminal multidisabler script
- fstab cleanup.
12.12.2020 - Update TWRP to 3.5.0
12.12.2020 - R build: Initial release for android 11.0.
12.12.2020 - Q build: Update to latest TWRP source
- Fix fastbootd.
15.11.2020 - Add TWRP fastbootd support
- Clean up fstab
- Move kernel to gz format.
24.09.2020 - Update prebuilt kernel and dtb's for more dynamic partitions compatibility.
15.09.2020 - Update to latest TWRP source with more dynamic partitions support.
03.09.2020 - Initial Release.
 
Last edited:
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fastmix

Senior Member
Feb 4, 2012
164
58
Pardon my ignorance but the g9860 s20+ snapdragon is it supported by this recovery?
 

jsbutran

Senior Member
Jan 3, 2006
981
74
Do I need to root the device as guided by Jesec in his thread or only unlock the bootloader. Will installing this recovery will auto provide root ?
 

jsbutran

Senior Member
Jan 3, 2006
981
74
I followed the steps but always get bootup in Android Recovery. Im on g988n snapdragon. Please guide. I have done OEM unlocking. Disabled AVB and flashed recovery. but try to boot in recovery I get into Android recovery. What I'm doing wrong
 

afaneh92

Senior Member
Jul 31, 2012
3,148
4,726
Works on sm-g9810 s20?
you can be the first tester on regular s20.
I followed the steps but always get bootup in Android Recovery. Im on g988n snapdragon. Please guide. I have done OEM unlocking. Disabled AVB and flashed recovery. but try to boot in recovery I get into Android recovery. What I'm doing wrong

worked fine on G988U, you need to be stock for disabling AVB then wipe and go back to download mode and flash TWRP
 

afaneh92

Senior Member
Jul 31, 2012
3,148
4,726
The bootloader can't be unlocked on the U and U1 models.
I have unlocked S10 G973U. PM me or join telegram group for more info.
Where is the multidisabler file located? I'm wanting to try this on my US Snapdragon S20+! ?

Multidisabler zip cant decrypte for now, super partition vendor are read only and cant modify fstab.qcom, will be fixed later.
The only way is to push edited fstab.qcom to vendor via adb or root manager.

Will add a guide tomorrow.
 
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elliwigy

Retired Forum Moderator / Recognized Developer
XDA App Taskforce
Theres a file at /system/recovery-from-boot.p or something rather he probably needs to remove else it will overwrite the custom recovery with other one.

you can be the first tester on regular s20.


worked fine on G988U, you need to be stock for disabling AVB then wipe and go back to download mode and flash TWRP
 

X04D

Senior Member
Sep 6, 2011
180
45
I followed the steps but always get bootup in Android Recovery. Im on g988n snapdragon. Please guide. I have done OEM unlocking. Disabled AVB and flashed recovery. but try to boot in recovery I get into Android recovery. What I'm doing wrong

Same problem here. G9860.
 

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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.
    Note: My TWRP builds are free I take no money or selling them, The new builds support US devices unlocked before 9 november or added upon request.

    Supported Models:
    Galaxy S20 Ultra G9880, G988N, G988U, G988U1 and G988W.
    Galaxy S20 plus G9860, G986N, G986U, G986U1 and G986W.
    Galaxy S20 G9810, G981N, G981U, G981U1 and G981W.

    US/Canada bootloader unlock thread:
    here

    Download & Guide:
    1. Unlock your bootloader.
    2. Download S20: x1q, S20+: y2q or S20 Ultra z3q.
    3. Reboot to download mode and flash vbmeta_disabled.tar in AP slot and reboot. Device will reboot to stock recovery mode prompting you to wipe data so wipe data and reboot to download mode again.
    4. Put the TWRP tar for your device with Odin in the AP slot and click start.
    5. Reboot to recovery via recovery key combo.
    6. Disable encryption:
    Or:
    - 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.​
    7. Go back to Wipe > Format Data > type yes.
    8. Reboot to recovery.
    9. Flash magisk apk in twrp.
    10. Reboot to system, Enjoy.

    Note:
    To disable encryption manually:
    You need to replace fileencryption=ice with encryptable=ice only in userdata line (maybe rest lines) in vendor/etc/fstab.qcom
    To avoid stock recovery restoration manually:
    Rename system/recovery-from-boot.p to recovery-from-boot.p.bak
    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
    @jesec for kernel source and unlock guide
    @ianmacd for multidisabler
    @sac23 and @elliwigy for testing on S20 Ultra G988U and G986U

    Sources:
    Kernel tree
    Device Tree:
    x1q
    y2q
    z3q
    3
    New builds Changelog:
    12.12.2020 - R build: Initial release for android 11.0.
    12.12.2020 - Q build: Update to latest TWRP source, Fix fastbootd.
    2
    Changelog:
    29.11.2021 - Update to TWRP 3.6.0
    - Add Symlinked dynamic partitions to fstab
    - Updated to latest kernel source
    - Update multidisabler
    - fstab clean up
    - Fix haptic feedback
    03.03.2021 - Update to latest TWRP source
    - Add terminal multidisabler script
    - fstab cleanup.
    12.12.2020 - Update TWRP to 3.5.0
    12.12.2020 - R build: Initial release for android 11.0.
    12.12.2020 - Q build: Update to latest TWRP source
    - Fix fastbootd.
    15.11.2020 - Add TWRP fastbootd support
    - Clean up fstab
    - Move kernel to gz format.
    24.09.2020 - Update prebuilt kernel and dtb's for more dynamic partitions compatibility.
    15.09.2020 - Update to latest TWRP source with more dynamic partitions support.
    03.09.2020 - Initial Release.
    2
    Thanks @afaneh92. For others' help, if anyone finds it useful, I flashed TWRP on my G986U1 using this sequence:
    • Unlocked bootloader as I described here.
    • Flashed vbmeta from this thread using patched Odin.
    • Flashed TWRP using patched Odin but did not auto-reboot.
    • Rebooted into TWRP using key combination.
    • Format data
    • Flashed multidisabler from OP in TWRP.
    • Format data again, just to be safe.
    1
    So, the bootloader unlock process is a paid service? I'm confused, can't we do it ourselves? Is the only solution to pay for it?
    Ok you can do it yourself. Buy international device.