ASUS VivoTab Note 8 M80TA

Problem Description	Symptoms	Solution	Source
No backlight.		This is a bug in the BIOS pre-213 version where, due to an unknown cause, the screen loses backlight (sets it to 0) and the device appears to be dead, other than the power button LEDs working like they should. To fix, find a way to temporarily light up the screen externally, like shining a bright flashlight into it and update the BIOS to at least version 213.	Source
Stylus not working, yellow exclamation mark appears on the digitizer in Device Manager.		Defective or damaged digitizer flex cable.	Source
No touch, Device Manager shows yellow exclamation mark on intel i2c device.		- Defective or damaged digitizer flex cable. - The touch screen may not work when you boot the tablet up while it’s physically in a cold environment. To temporarily fix it, disable and enable the device in the device manager. You could also make a batch script that does this and add it to startup. (it goes without saying that this is a workaround / temporary solution, and not an actual fix.)	Source