iOS 10.3 (build 14E5230e) is an official Apple over-the-air update for the iPhone SE, released on 2017-01-24T18:02:01Z. The update package is 673.48 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: 81d2136fe8ce08ec9874a1077fe1b12244303a26.zip.