Hi,
Regarding your issue, this could be due to your folder name is in chinese character, copy all the content and move it to a normal named folder. I did encounter this issue, and even left the tablet flash during the 2nd time reboot after flashing. Also if there’s an Android picture with moving gears, please dont force off your tablet, I almost did that, luckily I waited long enough and android booted up. Apparently, it’s reinitializing.
Have patience and you will have an updated tablet.
