[Upgrading, Modifying and Unlocking] Johannj22:
DISCLAIMER​

* I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed (like it did for me...).

* 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.

* Your warranty will be void if you tamper with any part of your device / software.​

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THIS GUIDE IS APPLICABLE TO YT-X705F, YT-X705L, YT-X705-X​

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PRE-REQUIREMENTS​

- Unlocked Bootloader ( Check this post)

- It is better to have the device rooted with magisk since we don't have TWRP

- SDK Platform-tools (Get it here)

- Any Android 10,11 or 12 gsi (Get it here )

- vbmeta.img from stock firmware (check post #3 for YT-X705F users)

- WinRAR or 7zip

- Patience

LET'S START SHALL WE?​

WARNING: This process will erase your data. Make sure to take a backup before proceeding​

Which Image Should I Download?​

Information about what type of GSI it is <ARCH>_xyZ

<ARCH> can either be arm, a64 or arm64

x can either be a or b

y can either be v, o, g or f

Z can be N or S

b = a/b

a = a-only

g = gapps

o = gapps-go

v = vanilla (no gapps included)

f = floss (free & open source apps instead gapps)

N = no superuser

S = superuser included so in most common example "arm64_avN" is ARM64 A-only

Z = Dynamic superuser(can be enabled or disabled)

NOTE THAT WE NEED TO DOWNLOAD arm64 AB image with vndklite. SO it should look something like "GSI-arm64-bgN-vndklite.img"

STEPS:​

- Download the GSI you want to try and extract it using WinRAR or 7zip. Move the extracted .img file to Platform-tools folder and rename it to system.img (Renaming is optional)

- Move the vbmeta.img from stock rom as well to Platform-tools folder.

- Reboot your device to fastboot mode (Vol down + power key) and type the below commands:

fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img

fastboot flash system system.img

If you haven't renamed the GSI file

fastboot flash system "gsi_name.img"

- Reboot your device to recovery. To do that press Vol down+Vol Up and Power button simultaneously while on fastboot mode. Once you are on recovery perform a factory reset

AFTER REBOOTING​

- If you are using the wifi version of the tablet you don't need telephony subsystem. To disable that go to Settings > Phh Treble Settings > Misc Features > Remove Telephony Subsystem. In case this doesn't work manually remove TeleServices folder from system/priv-app using Root Explorer

- Even if you remove TeleServices you won't get rid of the Call and Messaging app. To do that download Apk Info app from Play Store. This app will help you see the directories in which the Call and Messaging apps are installed. Just use root explorer and delete those folders and reboot. (For e.g system/product/app/GoogleDialer or system/product/priv-app/Messages)

- Also make sure to Enable "Use Alternate way to detect headsets" which can be found in Settings > Phh Treble Settings > Misc Features. This help's in detecting headsets

- If your bluetooth headsets/speakers are not working properly with the tablet after installing GSI, just enable "Force disable A2DP offload" from Phh treble settings> Misc Features

THAT'S ALL.. ENJOY YOUR NEW EXPERIENCE

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