iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 8 Plus (Global), released on 2017-11-09T18:08:59Z. The update package is 314.04 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: d312f0c5778182785b0ebec4ad045adbf93161fd.zip.