iOS 10.3 (build 14E277) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-03-27T16:58:22Z. The update package is 625.34 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: 03e38f8871bc00759ef18591a4813205bf4b6beb.zip.