Same on my K9C6 Model. It is completely dead after a flickering screen on Windows.
I try to press various combinations of buttons for minutes with plugged it in a charger and without. It would not turn on at all. When I use an USB detector when I put it in the charger it seems to load. But the tablet shows no loading screen at all. Has anyone tried to open the tablet and find the error?
Here is another thread about this problem: http://techtablets.com/forum/topic/turned-off-and-wont-turn-on/#post-16654
I send mine back to the seller and they send me a new one. I hope I get it soon. But I am not sure if the seller gets mine. I send another doa tablet to China and it comes after 15 day back to me, because it is not allowed to transport the integrated lithium battery…