iOS 11.2 (build 15C5107a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-11-13T18:04:24Z. The update package is 195.23 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: 9bee1059af301a2b26b5ee75299184af597d884c.zip.