iPadOS 10.3 (build 14E277) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2017-03-27T16:57:10Z. The update package is 564.32 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bd162ac5f13ae119236be7bdd2273e60c9ccf08e.zip.