iOS 11.4 (build 15F5071a) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-05-07T17:11:53Z. The update package is 314.46 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 123adfa907ba816143ec40cfac8e3ea61e94e8c1.zip.