To change your Avast PIN from a device which is locked:

To change your Avast PIN from the Avast Mobile Security app via Google Account:

1. Access the lock screen by tapping any button or icon on your locked device.
2. Tap Reset Pin.
3. From the main Avast Mobile Security screen, tap ☰ (three lines) ▸ Anti-Theft.
4. When you are prompted to type your current PIN, tap the ⋮ Menu icon (three dots) and select Reset PIN.
5. You are redirected to the Google Account login page. Tap Next to confirm your e-mail address.
6. Type your Google Account password and tap Next.
7. Type your new PIN and retype it to confirm changes.

To change your Avast PIN via Avast Account:

1. Log in to your Avast Account, then click the Grid icon and select Anti-Theft.
2. Select your device.
3. Click Settings.
4. Select the Anti-Theft tab.
5. Type in your new Avast PIN twice, then click Save.

Your new Avast PIN has been changed.