iPadOS 9.3.1 (build 13E6238) is an official Apple over-the-air update for the iPad 4 (Global), released on 2016-03-31T16:50:22Z. The update package is 1.23 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fe057f8a89f9178e3ab9bd4f000ad79f8d1d62dc.zip.