iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad Air (China), released on 2017-11-16T21:15:17Z. The update package is 159.07 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1597b78a17804d9b49d47602628dabca230a425a.zip.