Might be too late, but there should be two pins you can short on the board to reset it. If you didn't kill it, this should work.
[url]http://image.free.in.th/z/tw/2img_1686.jpg[/url]
[url]http://image.free.in.th/z/tm/2img_1687.jpg[/url]
UG802 Android TV Screen black from UP frimware not complete.Because of power fail.
How can I solve this problem?