iOS 12.0 (build 16A5345f) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2018-08-06T17:06:27Z. The update package is 1.2 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 71bcfe888ace7c63aec23d05360765f18f5a2637.zip.