iOS 11.4 (build 15F5071a) is an official Apple over-the-air update for the iPhone SE, released on 2018-05-07T17:11:52Z. The update package is 198.58 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: 0efece4567c444c9b6321a9f46f576e26b589cc4.zip.