Hey Brother,
Im using this same Android box and I'm recently having an issue of resolution fluctuations..
The box startups in 1080p default resolution..and the resolution bugging from 1080px60..1096px176..1074px4 etc. like that..and the screen is black
When I set it to the lowest resolution which is 480p it shows picture but pink color and unclear picture...this happens in hdmi output only..the AV component works fine...
Do you know what's the reason and how to fix this?