Hi guys
I have the same issue with my hi10. Tried to get to android and pressed the volume down button at startup and i got to the bios main menu. With no keyboard docked, i thought it was a good idea to let the tablet go out by itself ( battery ) and restart it normally. Now, black screen, no led blinking when charging but it still turns on and off. I can see it by a connected usb stick. my voltmeter tells me that the battery can sucessfully charge from 3,4v to 4,1v.
I tried to disconnect the battery and connect by micro usb. No chance. I was thinking about the microHdmi but u guys tried it already.
Last we had on our tablets, are working standart usb ports. there had to be a reason when nothing work until the power button and the standart usb ports. but i cant slove it whitout any image or something…