This is an official build, but it's unclear if it's the final version
Good news for Samsung Galaxy Note 3 owners who purchased their smartphones via AT&T, as the first Android 4.4.2 KitKat ROM for their phablets has just leaked online.Courtesy to XDA Forums recognized developer designgears, AT&T Galaxy Note 3 owners can now flash an official KitKat build on their devices.
However, the leaker of this build confirms the official ROM contains a bootloader, so make sure you really want KitKat on your Galaxy Note 3 before upgrading.
The Android 4.4.2 KitKat update for AT&T Galaxy Note 3 has no less than 1.5GB in size, so make sure you have a reliable Internet connection before attempting to download it.
Unfortunately, while it's clear that this is an official KitKat build for AT&T Galaxy Note 3, there's no telling if this is the final version nor when exactly the carrier will start the rollout.
For more details on how to download and install the leaked Android 4.4.2 KitKat ROM for AT&T Galaxy Note 3, head over to the original thread.