iOS 12.0 (build 16A5288q) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-06-05T09:52:22Z. The update package is 1.35 GB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e13231067a5450e1a33aba7f62cc01495ecceb18.zip.