iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-07-09T17:10:55Z. The update package is 1.41 GB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2be980a587551d35c60b7e1adb9713ed8f158a98.zip.