iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 6, released on 2017-12-02T08:13:58Z. The update package is 495.28 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cc79a66806ffa904495feb1ae6a35c2010486381.zip.