iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2017-11-09T18:05:23Z. The update package is 1.05 GB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 134ce873d519a90a64f535697e0be6ddea0ceaf3.zip.