iOS 9.9.11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-12-02T08:12:52Z. The update package is 1.5 GB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4df4901452c34accc17d0cbca573af0a2a8a4089.zip.