Tablet doesn't respond to touch neither when mouse is plugged in, at all
NOTE: THIS WILL FACTORY RESET YOUR DEVICE!
To fix this problem, first shut down your tablet. Boot into the bootloader by booting up regularly, but holding down your power and volume up buttons when you see the logo.
If you haven't installed fastboot, do that first.Then, go to the command line and type in

fastboot oem unlock

Then, find and download a factory image, then run

fastboot flash /path/to/factory/image.zip
fastboot oem lock
fastboot reboot

Hope this helps!