iOS 9.3 (build 13E5214d) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2016-02-22T17:47:33Z. The update package is 81.26 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: 23d7423ef1ee059c28f151b62b51dbf67d1d7bde.zip.