Why isn't the touch screen responding?

Did you drop it. the digitizer top glass might be cracked and broken or the cable could have been damaged or unplugged. I have a crack screen and touch still works. There's an app called phone tester but u need to be able to touch. Unless there's USB mouse support?

Try to turn ur phone up side down then touch/press the lenovo logo on top of ur phone and see what happen. This is working in some android. I hope it works for u.

Just repaired a Lenovo A2 charging port. After the repair when I got the tablet to charge the touch would not work. I held the power button down for about 15 seconds until it powered off. A minute later I turned it on and it reset itself and the screen started working. I knew their was nothing wrong with the touch screen because the cable was not damaged and after testing the connector on the board for current I got a reading over 2.0 volts. Hope this helps.

"Touch Problems on TAB? ? immediate solution is to plug in a computer mouse using OTG Adapter. Mine Lenove Tab sometimes does not sense touch. After plugging in the mouse you can control , take backup or reset the tab.

Best wishes!

Vishal"

I Have the M10 Tab and updated recently and after charging today touch screen not working. Tries all clears and reset to factory now stuck at the setup START prompt touch screen still not working. My warranty expires 11/30/20. Today is 11/29/20 I just upgraded it for another year and it only gave me 10 months. BUT WTF this is crazy that the screen will not work. I am in need of this device sending back in for repair will be terrible for me. Anything else I can try. AT the setup screen I now see a lock in upper left corner. Before the wipe the icon was unlocked.