iOS 10.3.1 (build 14E304) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2017-04-03T17:00:40Z. The update package is 626.19 MB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 74937adc8469c76c40dae7adf88684c7132feb2f.zip.