iOS 11.0 (build 15A5362a) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-08-21T16:44:27Z. The update package is 72.14 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: 3eacba96c4bfcb3bb8cde01758977a9dc2563c94.zip.