what do you do when the system ui shuts down?

[AC Question]

All of my apps keep shutting down and my phone turns off.I reset my phone and its still happening. What can I do to fix my phone?

 

[B. Diddy]

Welcome to Android Central! Which phone?

Try booting into Safe Mode, which temporarily disables all 3rd party apps. On most Android devices, while powered on, press and hold Power until the Power Off menu appears. Press and hold the Power Off selection until the Safe Mode prompt appears. Tap OK.

If the problem disappears in Safe Mode, then something you installed is causing the problem. You may have to uninstall apps one by one until the problem disappears. If the problem persists in Safe Mode, then it's more likely to be a hardware or firmware problem.