iPadOS 12.1.1 (build 16C5043b) is an official Apple over-the-air update for the iPad Air (China), released on 2018-11-07T21:08:22Z. The update package is 260.96 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cc779a646b09c8977366ec09659711af16673aaa.zip.