iOS 11.4.1 (build 15G5077a) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-07-02T17:05:48Z. The update package is 42.86 MB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d06f0ecaff1eb0dea08956f6ef7e1d4adf31f664.zip.