Miro will not lock

[Robyn200]

I have a Sony Xperia Miro but over the past few days the lock button does not work properly for example: the screen will not light up when the button is pressed, the power off selection keeps flashing up every 5 to 10 seconds, when i turn the phone off it turns back on again. 

Also all my songs been deleted but i never deleted them. 

Can anyone help. 

[_alexdon_]

Check if the same occurs in safe mode:

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