iOS 9.3.1 (build 13E6238) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2016-03-31T16:50:33Z. The update package is 1.18 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: 2a91f473c051fdf620943d22a971fee378f0fedc.zip.