Justi, Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android).
AVG Guru
i change the sim card and now im blocked,i reset my password and again is wrong password pls help me thnx, avg anti-theft in mz scren is - this device is lost or stolen please returne mz device and mz gmail balialban3@gmail.com but password is always wrong
Justi, Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android).
AVG Guru