iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-10-11T17:07:09Z. The update package is 1.05 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: f8b77e956058c9cbe46c012b3a7b809fec28f5d4.zip.