iOS 13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPhone SE, released on 2020-04-15T17:16:16Z. The update package is 318.21 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2e1f36ac5135db2fd304db12c97aa425ce93b70a.zip.