iOS 11.2 (build 15C5107a) is an official Apple over-the-air update for the iPhone X (Global), released on 2017-11-13T18:03:55Z. The update package is 165.04 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 387f88b9787aa4729c9c944be6d3b4fcde4e5f47.zip.