iOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2020-03-10T17:21:35Z. The update package is 799.43 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: e7b9f78127fcfa922453aafde5ae84d03bf0467c.zip.