I can't operate my phone

David, Don't know if this will help?.. Have a look @ this article (http://avgclick.me/LockedPhone).
AVG Guru

My phone was locked due to SIM change.
I have try several times to enter my security password but it says "wrong password, please try again".
What should I do?

David, Don't know if this will help?.. Have a look @ this article (http://avgclick.me/LockedPhone).
AVG Guru