iOS 10.3 (build 14E5260b) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2017-02-27T17:57:17Z. The update package is 420.26 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 87ff8fb50148a8e10c1fe87cabbe90570a788d65.zip.