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 76.94 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6086cdfe4ed5cd9ee14d98ad4db6bfe19a18cf0a.zip.