iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-07-09T17:10:57Z. The update package is 746.14 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7b70cd9bf6fecbe7bc18bbf6937ef63de2e0bd24.zip.