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 159.02 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3840cb8d16578fafbb1bbfe2f155269f3fe27e29.zip.