iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 6+, released on 2017-12-02T08:13:38Z. The update package is 315.9 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: 58aae1c1bffe43e68f766153d8a842a355389930.zip.