iOS 11.0 (build 15A5304i) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-06-21T20:09:56Z. The update package is 370.51 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: 5e4d6a706f879c924cba30044c8e34e248792c1f.zip.