iPadOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPad Air (China), released on 2015-03-09T18:49:04Z. The update package is 1.21 GB. This is a delta (partial) update that requires 7.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c2dd2d61698b0ac04e45dd1eab6ae35372554493.zip.