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.

Solution #5: Reset all settings If the “System UI isn’t responding” bug still occurs at this point, your should try a broader way to address it by dealing with almost all Android settings.