Unfortunately system ui has stopped

[AnkitSingh]

Hello

Can someone please help me. I have a Sony Xperia U  with Android version 4.0.4.

For the past 3 days I have the error message " system UI has stopped working" then my status bar dissapears for about 10 seconds, then it is back to normal.

This seems to be happening around 4-5 times a day, but just today I have noticed it happens every time I tap on a facebook notification within the status bar.

Does anyone know a quick fix for this without resetting my phone?

Thanks in advance

[Alexander1]

Do you experience the same problem if you start your phone in safe mode? 

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

If the problem doesn't occur in safe mode, it's probably caused by some 3rd party application installed in your phone. 

[Shilpa1]

In normal, there is written  Unfortunately system ui has stopped. And also in Safe mode, there is same message shown. Now plz solve my problem. If possible mail me;; 

removed by alexdon

[_alexdon_]

Download sony update service and repair.

[Shilpa1]

does this thing need to be ON mobile. because my mob is not ON. It is repeatably restart after lock screen appear

[_alexdon_]

No,to repair via SUS it must be off,but the battery should be over 60%.

[Shilpa1]

I have window 8.1. Does this soft work in my window. Plz tell me

[Shilpa1]

SUS does not include xperia U. now what i do?

[_alexdon_]

Run in compatibility mode with windows 7.

[Shilpa1]

But xperia u model is not there.
Compatibility mode win7 issue is after.