Ah, the WiFi could be a problem for the update. The way you do the update is either click on the notification or go to Settings > About > Software Updates, then tell it yes it can download and apply the update. But you need WiFi for that.
If you go into Settings rather than the shortcuts on the notification slide can you turn WiFi on from there?
If you go into Settings rather than the shortcuts on the notification slide can you turn WiFi on from there?