iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2017-10-11T17:08:25Z. The update package is 1.09 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: b6b6ded567cdcf77a71a760cca3206a2d3754f3d.zip.