Hello Dc Nagda,
We understand that you are unable to unlock your phone. Please be informed that you need to sign in to your AVG MyAccount from this link http://www.avgmobilation.com/ and unlock the phone. You can also check this link for the steps to unlock AVG http://avgread.me/1JEloSz.
Thank you
When i change my sim card and I forget my password, i contact AVG and rested my avg password band i enter new password but my phone is still lock and msg coming wrong password.
DC, If this isn't successful.. Please note that this Community deals mainly with the technical queries regarding AVG Windows products. AVG Android support is provided through email only. Please click on the following link (http://avgclick.me/AVGtechnical) and fill out your details, select as Android then the name of AVG Program that you installed in your mobile and in description please completely explain about your issue and finally click on Email option. Also when filling out your details choose Yes for the Question "Are you currently using any paid/trial AVG products?" even though you may be using the Free version and fill out necessary details and click on Email option. The AVG mobile team will reply back to you via email with a resolution.
AVG Guru
AVG Guru