iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-12-02T08:13:18Z. The update package is 1.03 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6bf13e3c6eac5490759f1c1b1dd65c99db591391.zip.