Xiaomi Mi Max 3 - phhusson/treble_experimentations GitHub Wiki
Issues
Backlight flickering (Android 11)
Go to Settings -> Treble Settings -> Misc Settings Scroll to Backlight section, and tick "Use alternate backlight scale" issue
Music does not play via Bluetooth
Instead, it is played through the phone speakers even when connected to a bluetooth device.
No known solution
GPS is slow to start
Workaround: Install GPS Test and reset A-GPS database. Then launch it a couple of times outdoors and let it connect 4+ satellites. That should restore A-GPS to normal function.