iOS 11.2 (build 15C5107a) is an official Apple over-the-air update for the iPhone X (GSM), released on 2017-11-13T18:03:58Z. The update package is 165.07 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: 30493edb754a02ebf364e493905d3dda33685228.zip.