iPadOS 8.4.1 (build 12H321) is an official Apple over-the-air update for the iPad Air (China), released on 2015-08-13T18:05:10Z. The update package is 1.49 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4deb870a1de2a5b961d09bfcd5ca1f9999388f3d.zip.