Nuvision Tablet Touch Screen Not Working. I recently did a factory reset on my nuvision tm800w560l tablet. Link #1 is a replacement digitizer and the 2nd link shows the replacement process.

Also if it shows that a lot of other networks are using the same channel, change the channel in the router to a 'quieter'. Once the tablet turns on it enters the reboot screen. Install any available updates and restart your pc if required.