iOS 11.2 (build 15C5097d) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-11-06T18:01:07Z. The update package is 117.58 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8ab5282871005483211cde77beb91f4191848096.zip.