iOS 10.3 (build 14E5239e) is an official Apple over-the-air update for the iPhone 6s, released on 2017-02-06T18:02:14Z. The update package is 687.91 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: 3799205ea2630987c041318f6a2976dcad77945c.zip.