iOS 13.0 (build 17A5556d) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2019-08-07T17:04:57Z. The update package is 621.04 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b1f2e69a7407af2f21ecbeb59b9a6fda2da12815.zip.