iOS 9.3 (build 13E5191d) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2016-01-25T20:52:42Z. The update package is 71.31 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: 6a5c6120ab77f741e5d35f19f978f6b8158442c9.zip.