iOS 11.0 (build 15A5318g) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-07-10T17:00:09Z. The update package is 337.82 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7aa48e1b8c4b4f9a99183050b8a1fef09f7c06c3.zip.