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 625.82 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5b446d32b0caa2c29f200898cf92ac8d4e194a43.zip.