iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2016-01-19T17:59:34Z. The update package is 38.26 MB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ec1660ee2118d1b336c67adacce8d22ca27d10e9.zip.