iOS 10.3 (build 14E5230e) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-01-24T18:01:58Z. The update package is 690.39 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: 79a2f53c4a34b716dc940fcb34a251619e356281.zip.