I have the same issue after swapping SIMs with my wife’s phone to trouble shoot it. Her’s now works but mine is alarming and I can’t shut it up as battery is non removable. HELP!

I tried entering what I thought was my pin but obviously isn’t correct as won’t unlock.

Tried resetting via My Avast but get this error:

http://i1304.photobucket.com/albums/s529/robertsykes02/Capture-Actioncannotbecompleteantitheftversionistooold_zps2fa60371.png