iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-11-09T18:12:02Z. The update package is 1.27 GB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c06f3cbf3c7cb553f3ff7a7b5824607f24f22b93.zip.