iOS 9.9.10.0.1 (build 14A403) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2016-09-13T16:56:19Z. The update package is 1.03 GB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 029806f0dfcd303f8b760c7c211047abcc811d60.zip.