iOS 12.4 (build 16G5038d) is an official Apple over-the-air update for the iPhone XS Max, released on 2019-05-28T17:07:41Z. The update package is 269.46 MB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fb1a82105e70057cd8b8b17d794e2c9d5db04ac3.zip.