iOS 9.3 (build 13E5191d) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2016-01-25T20:52:46Z. The update package is 103.26 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: c944315d20a0565e717f31d99b0ab18e0f639039.zip.