iOS 11.2 (build 15C114) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-12-02T08:15:14Z. The update package is 1.23 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03c6fd507c4eca09b57310db862e77bc774a37db.zip.