When the System UI stops working on your Android device, you may experience problems such as the screen freezing, apps closing, buttons not responding, problems with notifications, or even the ...

The System UI app manages various user interface elements on your phone. Over time, the app accumulates temporary data, known as a cache, to help it perform tasks more efficiently.

If updating the apps won’t fix System UI has stopped error, proceed to the next troubleshooting step below. Fix #4: Clear app cache and data of select apps.