iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone SE, released on 2017-10-11T17:08:15Z. The update package is 1.02 GB. 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: 8ecf149f4dd4a4c6d2513ae03f9e60f3278d70bb.zip.