iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2017-11-09T18:05:59Z. The update package is 163.75 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1d57246af00d36474fcc3fd180a3459ba4d5ff3f.zip.