iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone X (GSM), released on 2017-12-02T08:12:43Z. The update package is 410.73 MB. 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: 3bd96349958204aa40fe3a3e81fb483d7829628c.zip.