iOS 10.3 (build 14E5273a) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-03-13T17:02:01Z. The update package is 405.43 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d1f1d6c815d430a084eddf84b57d88224a97e2f7.zip.