iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 6+, released on 2017-10-11T17:07:32Z. The update package is 1.16 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: 7b77160af4b4de16ca03e64f909a2d4d6bbac9c9.zip.