iPadOS 10.3.1 (build 14E304) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2017-04-03T17:00:10Z. The update package is 25.62 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 74db529d2392ac5efb786f04b6bfb66f50e277f8.zip.