iOS 10.3 (build 14E5260b) is an official Apple over-the-air update for the iPhone 6+, released on 2017-02-27T17:57:04Z. The update package is 417.12 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: fb0f234050c34f30ade52b5df2e12585d112b7f8.zip.