iOS 12.4 (build 16G5027g) is an official Apple over-the-air update for the iPhone SE, released on 2019-05-15T17:05:47Z. The update package is 208.97 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 620c7e31d5d935f2e3ace3f3bb5d645ae9d19ce2.zip.