iOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone SE, released on 2018-07-09T17:10:41Z. The update package is 674.28 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c045d03afd53445f2f37dfcbb7af74cae3e85b89.zip.