Development [RECOVERY][UNOFFICIAL] TWRP for Galaxy Tab S8 Series (Snapdragon)

[mslayer27]

i did this and now my tab s8 boots into twrp, but its stuck there all the buttons work, i just when i try to reboot it reboots to twrp again. need help getting back to working?? im probably gonna have to delete everything again aren't i (

 

[Techguy777]

i did this and now my tab s8 boots into twrp, but its stuck there all the buttons work, i just when i try to reboot it reboots to twrp again. need help getting back to working?? im probably gonna have to delete everything again aren't i (

Off the top of my head I will say yes because I have never heard of anyone who kept booting back into recovery. So I would have the firmware at hand because I always download first. While holding volume up and volume down plug usb c into pc and tabler. While its trying to reboot.

You can give more details to what you did. Did you unlock bootloader? these types of things. Worst case you have to flash stock firmware and you don't break your brand new 1000 dollar tablet for good. data can always be redownloaded.

You dont even say if twrp works or sees your system or anything

 

[mslayer27]

Off the top of my head I will say yes because I have never heard of anyone who kept booting back into recovery. So I would have the firmware at hand because I always download first. While holding volume up and volume down plug usb c into pc and tabler. While its trying to reboot.

You can give more details to what you did. Did you unlock bootloader? these types of things. Worst case you have to flash stock firmware and you don't break your brand new 1000 dollar tablet for good. data can always be redownloaded.

You dont even say if twrp works or sees your system or anything

i was already rooted via magisk, then i went ahead and flashed the twrp.tar file to it via the AP slot on odin while in download mode. really hoping i can recover, again all i can do is boot into recvovery or download mode

 

[Techguy777]

i was already rooted via magisk, then i went ahead and flashed the twrp.tar file to it via the AP slot on odin while in download mode. really hoping i can recover, again all i can do is boot into recvovery or download mode

Yes I know a miracle fix without a factory reset is all anyone wants. When they pray to god at night thats it cure for cancer not so much.

So because you have still left no details im going to play the assuming game. You rooted by patching the AP file Right?

That means it was still encrypted when you flash twrp you also have to flash the kernel and format the data. Because the tablets still encrypted. You said you just flash twrp. My thought is it has be done the correct way if you add twrp you had to also flash kernel and format data.

 

[mslayer27]

Yes I know a miracle fix without a factory reset is all anyone wants. When they pray to god at night thats it cure for cancer not so much.

So because you have still left no details im going to play the assuming game. You rooted by patching the AP file Right?

That means it was still encrypted when you flash twrp you also have to flash the kernel and format the data. Because the tablets still encrypted. You said you just flash twrp. My thought is it has be done the correct way if you add twrp you had to also flash kernel and format data.

im reflashing the original firmware using Odin. sucks, i really didnt feel like redownloading all my apps and accounts today, idk why i had to put it on my tablet

 

[Techguy777]

i was already rooted via magisk, then i went ahead and flashed the twrp.tar file to it via the AP slot on odin while in download mode. really hoping i can recover, again all i can do is boot into recvovery or download mode

Just to beat you to I dont know a fix. I dont think there is one you will have to flash stock firmware and start over. You can try telegram and see what the developer says but I dont know

 

[Techguy777]

im reflashing the original firmware using Odin. sucks, i really didnt feel like redownloading all my apps and accounts today, idk why i had to put it on my tablet

I was right wasnt I ? You flashed twrp and not the kernel and rooted the AP?

 

[anastasiszn]

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 Tab S8 X906B, X906C, X906N, X900, X806B, X806C, X806N, X800

Download & Guide:
1. Unlock your bootloader.
2. Downloads for Tab S8:
AFH: gts8u twrp, gts8p twrp , gts8 twrp and kernel
Drive: gts8u twrp, gts8p twrp , gts8 twrp and kernel
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 custom kernel and 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
@Dan_FFM (David Dean) for helping with convert readonly f2fs vendor to readwrite
Donators

Sources:
Kernel tree
Device tree: gts8u, gts8p

Hello,

i have the galaxy Tab plus.
But when i download the kernel i find it only for Galaxy Tab S8 Ultra.
Is it the same ?

 

[anastasiszn]

Do we found a solution for the rw ?
I cant delete any system file

 

[afaneh92]

Hello,

i have the galaxy Tab plus.
But when i download the kernel i find it only for Galaxy Tab S8 Ultra.
Is it the same ?

Yes

 

[afaneh92]

Do we found a solution for the rw ?
I cant delete any system file

Currently, I don't have a real tester to fix rw on TabS8

 

[anastasiszn]

I can test for you bro.

 

[anastasiszn]

and my second question is.
Can you help me to boot on charge ?

 

[Chaser42]

Has anyone successfully upgraded to the Android 13 firmware without a factory reset?

I have an S8 and an S8 Ultra. The S8 has essentially become my primary computer as I use it for everything. I use the S8 Ultra as a toy and for testing. These devices were successfully rooted with TWRP recovery on the Android 12 firmware (data partition unencrypted).

The S8 Ultra was my test victim. I successfully got Android 13 running rooted with TWRP. However, my data partition got wiped. I do have a TWRP backup so hopefully I will be able to restore that. Oh well, I enjoy tinkering with my electronics so it's not a big deal.

But there would be quite a bit of pain if I had to do the same thing with the S8.

I usually have a lot of success with this stuff but evidently I messed something up. Please let me know if you have any ideas about what I did wrong. Here are the basic steps that I took:

1) Flashed BL, AP, and HOME_CSC for the new firmware. The AP partition was pre-patched with Magisk.
2) I then flashed TWRP along with the VB meta disabler.
3) I booted into TWRP and ran the multidisabler script.
3) At this point I was in a boot loop, so I wiped the meta partition as is recommended.
4) Tablet booted fine, but evidently got wiped because it was a brand new setup screen.

Hopefully I will be able to restore that TWRP backup of the unencrypted data partition. I will let you guys know how that works out.

Ch42er

 

[Techguy777]

Anyone flash one Ui 5.1 yet? Its out for EUY, EUX, and XAR if you didnt know

 

[hurray]

I would also kindly ask how to update to the latest to the latest rom without losing TWRP and without a full wipe.

The first steps are clear:
- download the new rom with Freya
- patch AP with Magisk on the Tab S8 ultra
- flash patched AP, BL and home-csc with Odin
.... And then the next steps are a little bit vague....

Any help and hint is very welcome.

 

[afaneh92]

I would also kindly ask how to update to the latest to the latest rom without losing TWRP and without a full wipe.

The first steps are clear:
- download the new rom with Freya
- patch AP with Magisk on the Tab S8 ultra
- flash patched AP, BL and home-csc with Odin
.... And then the next steps are a little bit vague....

Any help and hint is very welcome.

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 (not working on all devices), 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).

 

[hurray]

Thank you very much for the fast and detailed answer!

 

[Techguy777]

Thank you very much for the fast and detailed answer!

What version of magisk do you plan to use. I used canary 2508 because 2510 on one ui 5.0 caused all kinds of problems. 2508 work fine on 5.0. Well not so on 5.1 whatever changes hes making its not stable lol. Magisk keeps uninstalling the apk and lsposed wont work and all types of crazy **** I have never seen im trying to figure it out right now.

 

[hurray]

What version of magisk do you plan to use. I used canary 2508 because 2510 on one ui 5.0 caused all kinds of problems. 2508 work fine on 5.0. Well not so on 5.1 whatever changes hes making its not stable lol. Magisk keeps uninstalling the apk and lsposed wont work and all types of crazy **** I have never seen im trying to figure it out right now.

Hu, I am not completely sure for now.
Magisk 25.2 runs fine without issues on the Galaxy Tab S8 ultra with the BVL2-ROM from February.
I know that for the S23 ultra there is a modification in Magisk needed and therefore one must use a canary version for patching AP. I do not thought that this is also needed for the Tab S8 ultra.

I will read a little bit in the Magisk threads for sure and get maybe some information.