iOS 9.9.10.3.1 (build 14E304) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-04-03T17:00:29Z. The update package is 1.48 GB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: dda641bdf41d5498a29ca68563b346766e45a33d.zip.