iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2017-10-23T17:02:46Z. The update package is 159.04 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 27bcdb2516b067f701da4a02068a5fe644ab3f09.zip.