iPadOS 9.3.1 (build 13E6238) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2016-03-31T16:50:23Z. The update package is 1.39 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: cdc9caec94e00e9f3494a337510e9e5082f5eeca.zip.