iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-11-16T21:23:08Z. The update package is 1.2 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: 50dd1cf6f84b9fc4d5b572642c30f32239dc6a09.zip.