iOS 11.4 (build 15F5061e) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-05-01T17:06:18Z. The update package is 220.72 MB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 19579ecb80483efaa0af8e7ab4fe9b92dc497921.zip.