Screen glitch

Hello, I would first ensure you do not have any devices connected via USB cable or Bluetooth. When nothing is connected, does the problem still occur? If not, then look at the USB cable, phone software or hardware as the source of concern. If the problem remains, then it is likely an audio unit hardware issue, or a software issue, and troubleshooting will be needed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops