iOS 11.4.1 (build 15G5063b) is an official Apple over-the-air update for the iPhone 6+, released on 2018-06-11T17:21:57Z. The update package is 219.41 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: 66a2f7e98a5efa9baa6fe937e343970fbe3b770a.zip.