iOS 10.3 (build 14E277) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2017-03-27T16:58:21Z. The update package is 801.93 MB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6ef2939b9c477c9b3f29b2c2d642897a84805903.zip.