According to the problem you described, I suggest that you back up the important data first, then restore and clear all the data, and don't restore the data temporarily after booting, and see if you can solve the problem. (Backup: Security Center-Backup, backup the data you need. Clear data: press and hold the volume up button and the power off button when the boot screen appears, and then let go to resume. Enter Recovery & gt Chinese > clear data > clear all data. )