iPadOS 10.2.1 (build 14D27) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2017-01-23T18:07:23Z. The update package is 322.39 MB. This is a delta (partial) update that requires 10.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bf4fb1c08f95dec9141d79926d060fb8eac455bf.zip.