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 733.76 MB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f1666d6483bd0f60a02e2182e7f5d421ab6dd2e5.zip.