iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2017-11-09T18:09:06Z. The update package is 314.05 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1e445074dd01390d02429c2da3967c6c1c1ed183.zip.