iOS 11.2 (build 15C5097d) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-11-06T18:01:05Z. The update package is 107.98 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f7c26fc08186460cf14bd98b140b10e96ef15275.zip.