iOS 11.4.1 (build 15G5072a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-06-18T17:05:42Z. The update package is 159.18 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: d433ad522494b0f4fb5836222aeab6be8f6d702e.zip.