iOS 12.4 (build 16G5038d) is an official Apple over-the-air update for the iPhone XR, released on 2019-05-28T17:07:42Z. The update package is 295.36 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: 710fc55e5dd81217e0b4bed2f13a70a3c66d1eda.zip.