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

afaneh92

Senior Member
Jul 31, 2012
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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:
Glaxy S20 Ultra G9880, G988N, G988U, G988U1 and G988W.
Glaxy 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 and disable AVB from here
2. Download S20: x1q, S20+: y2q or S20 Ultra z3q.
3. Reboot to download mode
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!, flash multidisabler-samsung-3.x.zip and format data in twrp and type yes.

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.
- Haptic feedback is currently not 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
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Changelog:
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.
 
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jsbutran

Senior Member
Jan 3, 2006
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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 ?
 

afaneh92

Senior Member
Jul 31, 2012
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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 ?
The unlock is to allow flashing custom recovery, and no root inside you need to flash magisk to get root.
 

jsbutran

Senior Member
Jan 3, 2006
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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
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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
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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

Forum Moderator / Recognized Developer
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Mar 16, 2011
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Phoenix
www.sampwnd.com
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
177
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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.