iOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-01-08T18:19:28Z. The update package is 69.38 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: bad4e541badde19fb1560faea7ed47bbf191e544.zip.