iPadOS 8.4.1 (build 12H321) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2015-08-13T18:05:11Z. The update package is 743.23 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: 6069ebc18fa2d7a273f64c2a5347d93e33e26504.zip.