iOS 13.4 (build 17E5241d) is an official Apple over-the-air update for the iPhone 11 Pro Max, released on 2020-02-26T18:17:55Z. The update package is 902.35 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: 5c20e3ddba9978d0c63c4a3813937f6fd5b7a317.zip.