iOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2018-10-30T17:16:32Z. The update package is 1.69 GB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 90456272f6311701dddd2b739b72c5f6014e7778.zip.