iOS 10.3 (build 14E5230e) is an official Apple over-the-air update for the iPhone 6, released on 2017-01-24T18:01:55Z. The update package is 679.67 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: 2c7e6832ccd061c81544f719f2a4ce00480c2995.zip.