iOS 9.3 (build 13E5214d) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2016-02-22T17:47:34Z. The update package is 98.46 MB. This is a delta (partial) update that requires 9.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 98af7a66666273e2ce622a9e52fa1300bed512fa.zip.