@magnifico Please, would you tell me what software you have used to make your 4k HDR files run on this box? I have tried HandBrake and Avidemux latest version but no luck. In every forum I found someone who says the same like you - but no one tells us how to do.
The privat movie files I build are running on all other players, like VLC, Kodi player, KMPlayer, Windows media player and others.
So I dont think it's me - is'nt it?
The only solution I found is to code the movies full screen with black bars. But that's realy no sulution!
Please, give us advices!
Thx, murdge