1) First Check that the content Update is up to date or update if required.
Device – Dynamic Updates – applications and Threats
2) My current version was 4.1.6. Inorder to upgrade to 5.0.6, we have to make sure that the base firmware 5.0.0 is downloaded (no need to install it). We then download and install v5.0.6. And finally install it. Finally 🙂
Device – Software