iPadOS 9.9.11.3.1 (build 15E302) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-04-24T17:06:37Z. The update package is 1.39 GB. 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: ebcd26de274fd95d4817aa49d6fd5615128939b1.zip.