iPadOS 10.2.1 (build 14D23) is an official Apple over-the-air update for the iPad Air (China), released on 2017-01-09T17:55:46Z. The update package is 55.43 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d34ce7dafed3fa79148782df5c01f9a21fb5a8a2.zip.