iOS 13.4 (build 17E5249a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2020-03-03T18:20:19Z. The update package is 800.21 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 36ebdb97d140ca0ad92ea0f294bca682bd50fc20.zip.