I thought this box could do 4k ?
My tv is only 1920x1080 at the moment, but the UT3 should do better for the future.
Edit,
Its XBMC that can not do the higher resolution, in ut3 menu is the option for higher res.
But like an idiot i changed to higher resolution and now cannot see the screen lol.
The reset button does not do anything, will have a look round for a solution.
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