Unable to unlock the phone

My phone got locked. After that I have unlocked it through avgmobilation site. After that I've tried to un register the anti theft through phone, but i was unable to un-register it. After a day my phone just hanged and after restarting the phone it's again locked by AVG. Now I'm to unlock through the website but it shows "There are no devices registered".

Please Help me with your guidance.

Rahul, Please note that this Community deals mainly with the technical queries regarding AVG Windows products. AVG Android support is provided through email only. Don't know if this will help?.. Have a look @ this article (http://avgclick.me/LockedPhone). Otherwise, 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