So if you are using OTA update make sure your phone is fully charged. The update is available as OTA and through Kies, and keep in mind it is quite big at 1.3GB. As the updates are rolling out in phases you might have to wait for some more time inorder to get the update for your device. Samsung has started rolling out updates in UK for Galaxy Note 8.0 (GT-N5120) users.
Samsung is on a roll with the updates recently, few days back it started rolling updates for the Galaxy S2 Plus and Galaxy Tab 2 8.0 it is now started rolling out updates to these devices. Samsung has started rolling Android 4.2.2 updates for Galaxy Note 8.0 LTE (GT-N5120) and Galaxy Tab 2 7.0 (GT-P3100) according to reports.