iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 6+, released on 2017-11-09T18:10:20Z. The update package is 241.98 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8624768d2d0253798ad54066c0ad8e7a3ee3e070.zip.