iOS 12.0 (build 16A5327f) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2018-07-17T17:06:12Z. The update package is 392.32 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b25b07de0940cc37fdfbef6ea03b452026e5a1dc.zip.