iPadOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPad 2 (GSM), released on 2016-03-31T16:50:48Z. The update package is 826.99 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c6c2ee0d1e2a6b923af8f29ff88ba50d6143f068.zip.