iPadOS 8.1.2 (build 12B440) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2014-12-09T17:49:04Z. The update package is 473.1 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: 694c32580fb1cbeaf3e413d3f33e16e593f620b3.zip.