iOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2016-03-28T16:52:28Z. The update package is 998.56 MB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d2c755e778155f2f0ae06abe5535098aa5232b6c.zip.