iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-07-09T17:10:44Z. The update package is 1.41 GB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a64dfec70cd20a5f8f46f546677e0502d07a9a8b.zip.