iPadOS 9.9.10.2.1 (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 1.33 GB. This is a delta (partial) update that requires 8.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ca7bee120ab0654e92fd40b1763266dd6299f25c.zip.