iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2017-11-09T18:05:10Z. The update package is 159.05 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 040275e164f273244fcfe025892ddb8e9c390911.zip.