How do i fix my LG L80 com.android.systemui?

[AC Question]

Because of that problem, my phone does not find my operator network. since i got that error message com.android.systemui has stopped working' my phone has no network. what should i do plz?

 

[B. Diddy]

Welcome to Android Central! Try booting into Safe Mode, which temporarily disables all 3rd party apps. Steps are probably the same as with the G2: https://support.t-mobile.com/docs/DOC-11127

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.