How to unlock the device

Hello Magdalena,
We regret for the inconvenience you are facing with the Antitheft feature. If you have installed AVG AntiVirus on your phone you might have enabled Anti-Theft service. If you change the SIM card the device will be locked automatically. To unlock the device, you need to use your Anti-Theft password.

If you have forgotten Anti-Theft password or when it doesn't accept the password please follow these steps on the article http://avgread.me/1WvQqze . Do not remove your device from the Remote Management at avgmobilation, Removing the device will keep it locked. Also device must be connected to a known network Use your AVG MyAccount or Google Account.

If the issue still persists please click on the following link http://bit.ly/1EC8H4H and choose Yes for the Question "Are you currently using any paid/trial AVG products?" inspite of using the Free version and fill out necessary details and click on Email option. Our AVG mobile team will reply back to you via email as soon as possible.
Thank you.

How to unlock the device if you forget your pin and accidentally remove the device from your account?

Hello Magdalena,
We regret for the inconvenience you are facing with the Antitheft feature. If you have installed AVG AntiVirus on your phone you might have enabled Anti-Theft service. If you change the SIM card the device will be locked automatically. To unlock the device, you need to use your Anti-Theft password.

If you have forgotten Anti-Theft password or when it doesn't accept the password please follow these steps on the article http://avgread.me/1WvQqze . Do not remove your device from the Remote Management at avgmobilation, Removing the device will keep it locked. Also device must be connected to a known network Use your AVG MyAccount or Google Account.

If the issue still persists please click on the following link http://bit.ly/1EC8H4H and choose Yes for the Question "Are you currently using any paid/trial AVG products?" inspite of using the Free version and fill out necessary details and click on Email option. Our AVG mobile team will reply back to you via email as soon as possible.
Thank you.

Hello Magdalena,
We really apologizes for the inconvenience caused. We would request you to confirm whether you had contacted to our AVG Mobile support team. If so, may I know whether you got the resolution from them?
Thank you.

That is how the device was removed this phone is to be thrown away? Because I have this old sim card because I completely forgot it was on AVG Anti-Theft

Magdalena, Please note that this Community deals mainly with the technical queries regarding AVG Windows products. AVG Android support is provided through email only.
AVG Guru