Activate your Avast Mobile Security subscription on the new device. Ensure you are logged in on the new device to the same Google Account that was used to purchase Avast Mobile Security.Install Avast Mobile Security on the new device. Uninstall your version of Avast Mobile Security from your previous device.
How do I transfer my Avast account to a new computer? Where do I find my Avast activation code?.How do I transfer my Avast account to a new computer?.