My device has locked ever since December.... None of you seems to help... All it displays is a mes

Device lock please help I cannot use a sim card 
 

Hello, Victor.
I apologize for the inconvenience caused. Please follow the instructions provided in this article http://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android to unlock a device which was locked by AVG.

Hello, Victor.
I apologize for the inconvenience caused. Please follow the instructions provided in this article http://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android to unlock a device which was locked by AVG.