iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 6+, released on 2017-10-11T17:07:31Z. The update package is 1.21 GB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8bcbfdf2493b872f92c3b6153b3cf1ed4c7ddf9b.zip.