iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-11-16T21:21:01Z. The update package is 234.83 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 68114816c54389406cc8a5345b3bf51cf1cbd3a2.zip.