iPadOS 11.2.1 (build 15C153) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2017-12-13T18:05:19Z. The update package is 1.07 GB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a5331e4766eaee37826dd8a59a37b0aff4347c5c.zip.