iOS 11.4.1 (build 15G5072a) is an official Apple over-the-air update for the iPhone 6+, released on 2018-06-18T17:05:38Z. The update package is 154.57 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: 3dc82d2298e3fc8a62383ec7fc0cb0f06699fb0b.zip.