iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-07-09T17:09:25Z. The update package is 831.86 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0a940a2c488e3c06c13a13ce7fd314ff2145c048.zip.