How To Fix Android headunit touch screen not working - YouTube. cleaning my radio screen and it cause this problem lucky it was an easy fix I figure out. Well, here I am with a brand new Mirage and my touchscreen isn't working correctly. It's the OEM 7" Pioneer screen with the one knob on the left, not the previous 2 knob head unit. I started my car and the screen is off completely. No back up camera, nothing. I waited an hour went back and now it's working. Wiggle the harness to check if it is loose. If loose, firmly push the harness back into the head unit. If it does not connect, you will need to replace the wiring harness. Sound Not Being Produced By Every Speaker. Touch screen not working when touched. Roman gemini - Apr 20, 2020 Reply. Touch screen does not work when touched. Roman gemini I8JG.

head unit touch screen not working