My Teclast X16 (Power), turns off unexpectedly. This happens while listening to music in Windows, first with Winamp and now with Groove. After switching off, the tablet looks dead, it will not charge and will not turn on. I have to wait several minutes (30 and more)and try again many times. I am afraid that something is shorted, and already tried to update drivers, maybe there is an thermic control? Or the problem is due at external sd card with music. Not problem in Android also if the sd card many times is not recognized.