vivo Y20 2021/Y12s (MTK)

This page are only meant for MediaTek version of this device. Snapdragon are not supported

How to flash GSI

You need:

• Unlock bootloader
• TWRP must be already installed
• A PC and platform-tools

First you may need to download GSI which suite our phone 'arm64 AB'

Steps:

1. Reboot your phone to fastboot mode (bootloader) using adb command adb reboot bootloader or hold volume up key when rebooting
2. Type fastboot -w <- this will erase userdata
3. Now type fastboot reboot fastboot <- this will reboot to fastbootd which allow us to flash system image on dynamic partition
4. To flash system image, type fastboot flash system [The path where the gsi.img file is located or drag gsi.img file] and wait for it
5. Once it finishes flashing, you can reboot using TWRP or vivo recovery or command fastboot reboot

Congrats, you have GSI installed on your phone!

References

Telegram Group https://t.me/vivoMediaTek