iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 6, released on 2017-12-02T08:14:02Z. The update package is 310.57 MB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 450e70ca0d664bb3d93e3f9c2b7b4a38e6ef3ab9.zip.