iOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPhone X (GSM), released on 2019-07-09T17:16:19Z. The update package is 335.76 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: 80a0ac260421560383550bd74fbb0c7b640bdfa7.zip.