iOS 9.0.1 (build 13A404) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2015-09-23T17:55:23Z. The update package is 1.1 GB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 66bc8b4bf956087ff7a88a5cc762df15baa13bd9.zip.