Just got a MiBox 4K, whenever I change the settings to 4k60Hz, my TV screen is all glitched with lines all across the screen. But when I chose 4K-smpte, it works
TV is an NU8000.
AppleTV 4K and FireTV both work just fine on 4K.
Edit: Fixed the problem above, but I have a new problem now.
I can't play any 4K content without the box stuttering. I have gigabit internet and the router is right next to the box. I connected via ethernet and the same problem occurs, so my internet is def not the problem. The box is brand new, just got it yesterday, so I don't think a factory reset will fix it. I also cannot play any live channels without the box stuttering. I have an HDHomeRun and basically any HD channel freezes every few seconds.
Could be the hdmi cable. Replace the cable with a spare