iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone 6+, released on 2018-07-09T17:09:45Z. The update package is 691.72 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d9e0ba6ebe767cc89875cf96ea763cf52104c281.zip.