iOS 10.3.3 (build 14G60) is an official Apple over-the-air update for the iPhone SE, released on 2017-07-19T17:03:49Z. The update package is 672.19 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: 11a00230e37287b28d8a9b21a0416bb1764d9c6a.zip.