iOS 10.3 (build 14E5239e) is an official Apple over-the-air update for the iPhone 6, released on 2017-02-06T18:02:14Z. The update package is 686.96 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: d3f690c91713990c268cdb389920d1d614b2b819.zip.