iOS 11.0 (build 15A372) is an official Apple over-the-air update for the iPhone SE, released on 2017-09-12T19:10:37Z. The update package is 1017.69 MB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 184e418c409463bceccbf17592315003249ba9d6.zip.