Tested on Redmi 5 Plus (Vince) android 9,10 MIUI 10, 11
Unlock Bootloader
- Install MiUnlock
- add Mi Acccount and Link in developer Setting
- reboot bootloader
- Open MiUnlock login to you mi account
- Choose Unlock
- fastboot reboot
SDK Platform Tools (adb fastboot)
https://dl.google.com/android/repository/platform-tools-latest-windows.zip
TWRP
Flash TWRP & Root Magisk
- adb reboot bootloader
- fastboot flash recovery TWRP
- fastboot reboot +hold volume up
- install magisk
Stock ROM
https://xiaomifirmwareupdater.com/archive/miui/vince/
Custom ROM
OpenGapps
https://udomain.dl.sourceforge.net/project/opengapps/arm/20201209/open_gapps-arm-10.0-pico-20201209.zip