Winile, Don't know if this will help?.. Have a look @ this article (http://avgclick.me/LockedPhone) .
AVG Guru
I changed my sim card and my phone was locked I can't access my phone. I've sent serveral emails with no respond. Its been 3 days now please do something about this. My email address wnxumalo4081@gmail.com Sony Z
Winile, Don't know if this will help?.. Have a look @ this article (http://avgclick.me/LockedPhone) .
AVG Guru