iOS 13.4 (build 17E5223h) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2020-02-05T18:17:40Z. The update package is 775.04 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: e647dfb922520c9ea7fe665f88e993a238e5a7c0.zip.