iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-07-09T17:10:52Z. The update package is 754.81 MB. This is a delta (partial) update that requires 11.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: feca433b61cb84f55e9628c8c81d060bd8cc0703.zip.