iOS 11.4.1 (build 15G5063b) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-06-11T17:22:01Z. The update package is 270.35 MB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2c0309063365b502e190e10f4a3a8078bfa78a42.zip.