Itumeleng, Don't know if this will assist @ all?.. Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android).
AVG Guru
My antivirus is denying my antitheft password after changing the sim card, can you please help me on what to do?
Itumeleng, Don't know if this will assist @ all?.. Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android).
AVG Guru