iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-12-02T08:12:56Z. 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: a6b931af20b38aa2078e780279958d1ba1e9356b.zip.