iOS 9.0.1 (build 13A404) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2015-09-23T17:55:23Z. The update package is 34.18 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9c8b31ec0dde0e9c61c7f577d46d996a251b6807.zip.