The most reliable way to activate Norton 360 on a mobile device is by linking it directly to your central Norton account. Follow this sequence to ensure the license registers correctly. Step 1: Claim the Key on a Web Browser
It is included in your purchase confirmation email. product key for norton 360 mobile link
The feature allows you to:
The location of your 25-digit code depends on how you acquired the software: The most reliable way to activate Norton 360