iOS 10.3 (build 14E5260b) is an official Apple over-the-air update for the iPhone 6, released on 2017-02-27T17:57:06Z. The update package is 391.88 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: 3336cf807a54b6a93fc7645fbbe8ae81c4e15d95.zip.