iOS 11.4.1 (build 15G5074a) is an official Apple over-the-air update for the iPhone 6+, released on 2018-06-25T17:06:30Z. The update package is 44.09 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: e762b3aaa7aa6a77cdf609689343660fba08dc39.zip.