iOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-03-29T17:13:24Z. The update package is 855.29 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e3e79cf53ca2201b8dcdb592e2aaab4921f375eb.zip.