iOS 12.1 (build 16B5059d) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-09-18T17:20:17Z. The update package is 535.31 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: 656d5e9c59d609fc303ffce4901d16a192911e82.zip.