An unresponsive touch screen on an Android phone or any smartphone for that matter could be just a result of a minor software-related issue or a serious hardware problem involving the screen ...

How to Fix a Touch Screen That Isn't Working We've found that the following steps can help a touch screen start working again. You should try them in this order, but some may not apply to your device.

Galaxy S10 accidental screen touch fix #4: Turn off Edge screen As mentioned above, one of the common reasons why there’s accidental screen touch issue is the Edge screen.