I am on my second K1 tablet in 2 days, and the first one was fine then it just would not turn on, I tried everything to make it work but nothing. Got a new one in exchange last night did the update and 2 times last night when I clicked the power button and it went to sleep a few minutes later it turned back on like it was off or rebooted. Anyone have anything similar happen. I love this pad just wish it would work like my other tablets.