Conrad, Don't know if this will assist?.. Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android).
AVG Guru
I am locked out of my phone. I downloaded the AVG free antivirus for mobile which included 30 days free of pro security anti theft features. I set up passwords online, then tried the security features. Horror, my phone did not recognize any of the passwords I set up online. In desperation I thought if I deleted the device from my online profile, it would reset and disable the features on the phone. NO it did not! My phone remains locked. I am without the use of my phone. The support available is only through email, and this is not timely, and I do not know how long this will take. I tried the phone number given on the bottom of the page, "contact us", but they told me that they do not support the free products over the phone. Well, I was considering upgrading once the trial period was done, but that won't happen now considering your product has malfunctioned on my phone!!! I want access to my mobile phone!!!
Conrad, Don't know if this will assist?.. Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android).
AVG Guru