Remember to update Avast Anti-Theft if you don't get automatic updates.

Notice: Coming updates will affect remote command capabilities in past versions of Avast Anti-Theft. Manually update Anti-Theft to stay protected.

Due to coming changes in push notifications, previous versions of Avast Anti-Theft will no longer be able to receive commands from your my.avast.com account. If your applications are automatically updated from Google Play, it's not necessary to do anything - you can use Anti-Theft normally. However, if you have automatic updates switched off, please manually update Avast Anti-Theft to the latest version. This will allow you to remotely control your device from your Avast account. Commands sent via SMS will continue to work as usual, as well as any data sent to your Avast account.

How do I use Avast Anti-Theft to recover my lost Android device?

During set-up you were asked to provide one or two friend's phone numbers. If you haven't done that step, do so now. The Avast Anti-Theft installation and configuration FAQ shows the steps.

You can use the friend's phone to receive an Avast Anti-Theft SMS notification in case your device is lost or stolen or to recover the Avast PIN in case you forget it.

Usually the first thing a thief does is change the SIM card. When Anti-Theft detects a SIM change, it will lock the phone and SMS all the details to the friend's numbers you set up in the app.

As long as you have updated your app, you can track and control your device remotely using SMS commands from your friend's phone or from your Avast account. All SMS commands begin with your password. For example, if you set 2222 as your password, the lock command would look like this: 2222 LOCK.

You can find all the SMS commands on the Avast Free Mobile Security page.