iOS 12.4 (build 16G5056d) is an official Apple over-the-air update for the iPhone X (GSM), released on 2019-06-24T17:17:23Z. The update package is 221.06 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: 13e0971d196cb210af8669af5407a45f8ba4053e.zip.