iOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-10-30T17:15:48Z. The update package is 1.61 GB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1aa002a14c42dbb3ca6f28432d42f984f1486d05.zip.