iOS 9.9.11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-10-23T17:06:32Z. The update package is 1.58 GB. This is a delta (partial) update that requires 8.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c9189425122283c8b44d5254d6ec1aef1330bbe0.zip.