iOS 11.0 (build 15A372) is an official Apple over-the-air update for the iPhone 6+, released on 2017-09-12T19:10:00Z. The update package is 1.2 GB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6834773173cbe8dfd02019dd9d6bcbd798bfc855.zip.