I have one MXQ pro 4k with the board rk3229-mxq-8723 v1.0 and i've briked this board trying to reinstall android, and don't had a backup, so it stayed useless. After a time i found one .img that can turn on my device showing the android boot screen, bot it keeps in loop and ends with a green screen. i've tryed to enter the recovery mode but it doesn't run i keep on loop. So i try to install the armbian in this device, i've burn the Multitool but when i put the sdcard on the tv box, , it doe