iOS 11.0 (build 15A5318g) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-07-10T17:00:20Z. The update package is 367.21 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: a0523c95959b7ae2258e8fc2e3689600cd952619.zip.