iPadOS 9.3 (build 13E5225a) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2016-03-01T18:13:32Z. The update package is 150.68 MB. This is a delta (partial) update that requires 9.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 10bac79ac95fd31d0ff74212639da56ea8d22a63.zip.