hello, your tablet is Hi 10 or Hi 10 pro ? could you please take some pictures about the problem and send it to their customer service: email@example.com
by the way, please read this thread carefully: http://forum.chuwi.com/forum.php ... =Chuwi%2BHi10%2BPro
Note: To flash bios will erase the product key, so we don't offer the Hi 10 pro bios in the forum. Besides, to flash bios is risky, it will brick your tablet if your use a incorrect bios.
so i think contact their service is a good choice, have a good day