iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-12-02T08:15:08Z. The update package is 1.19 GB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 88b4f7478937cbcae0062c0adaabcd4b05729f17.zip.