sim insert bug

[aster]

Sim inserted.restart is the message.my tablet stops and made restart alone.
There is no SIM card inserted in this tablet. Sony Xperia Z1 model SGP 321 -Android 4.3
These resets are becoming more frequent.
Any suggestions?

Thanks

[_alexdon_]

Boot in safe mode,see if the same occurs:

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