I'm a bit late on parade, but i had the exact same problem with mine. Black screen, wouldn't charge, and showed no signs of any life whatsoever. Very simple fix though…? Pop the back off the tablet. Then your faced with the circuit board and the battery. Disconnect the LCD ribbon from the connector plug on the circuit board. Peel the green tape back and gently ease it out of its socket. Then plug the tablet into the charger and leave it alone for an hour. After an hour, unplug the charger lead, and reconnect the LCD ribbon back into its socket on the circuit board. The vitally important thing to do is make sure that the tiny little plug on the ribbon goes into the socket correctly. There is a white line that runs across the plug, and another white line on the circuit board socket. When you ease the ribbon back into the connector you need to make sure that the two white lines are 100% perfectly in line with each other. If your even the slightest bit out of line, it won’t work. Then once you've plugged the ribbon back in correctly, push the power button down to test it before putting the back casing on. The tablet will come back to life as if by magic. Snap the back cover on again, and plug it back into the charger. It'll work like it did when it was new. If it doesn't work, it will be because you haven't lined the white lines up with each other. So repeat the process again.