iOS 9.9.11.0 (build 15A372) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-09-12T19:09:43Z. The update package is 1.22 GB. This is a delta (partial) update that requires 9.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5b6f38aa5839315e5c5671a21e8939cb9f0fef14.zip.