iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2017-11-16T21:20:07Z. The update package is 314.09 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 27f87a191e6fa92b79a71a95f48d9c2ee972a1b0.zip.