thanks a lotYou can convert to an AndroidTV ROM, if you're ok losing all your data and using the USB burning Tool.
See
https://forum.freaktab.com/forum/tv...9-h-scv1-atv-android-7-1-2-android-tv-version
Or
https://forum.freaktab.com/forum/tv...1-2-minix-neo-u9-h-mod-7-update-final-9-20-19
Note - I have not tested these ROMs, so I cannot voucher for them. Try/use them at your own risk.
Nougat is the highest firmware you will get for the U9-H.