iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2017-11-16T21:18:36Z. The update package is 162.64 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: 20108469826477cbdc5154f581eaad89fd43f55d.zip.