2、Resolutions—Now most of the TV boxes (including all TV boxes from cosycost support 4K resolution, which is the basic function. Press the hidden button in the AV hole with a toothpick to forcibly restart the TV box. ).

2、Resolutions—Now most of the TV boxes (including all TV boxes from cosycost support 4K resolution, which is the basic function. I say theoretically because every system has flaws and the numbers advertised are ALL produced in nice case scenarios. ).