Dear sir, my phone shows UL has stopped ,how can rectified

[1336]

Xperia z 3, 

[Martin1]

Hi @1336, I am sorry to hear about this,

If the System UI crashes, have you tried performing a software repair using Xperia Companion in order to see if that resolves what you're experiencing? Please keep in mind that a software repair will erase all user data, so make sure to do a backup befor the repair in order to prevent data loss.

Let me know how it goes!