iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-10-11T17:08:31Z. The update package is 1.06 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2a3efe2f0d1bddb9b69e1c85c11989b70186410d.zip.