iPadOS 8.1 (build 12B410) is an official Apple over-the-air update for the iPad Air (China), released on 2014-10-20T17:59:06Z. The update package is 113.9 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e6b2e6d49eea631eedeab27b30ce533b2bd8d676.zip.