iOS 11.4.1 (build 15G5054c) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-05-30T17:05:21Z. The update package is 273.95 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: 7dbdaa3f6d0ae5184f5d486d14ef2f2ed06366ba.zip.