iPadOS 12.1.1 (build 16C5036c) is an official Apple over-the-air update for the iPad Air (China), released on 2018-10-31T17:03:35Z. The update package is 259.21 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: 93620c5ca7b39905a7b305eb887cc47ba75545ab.zip.