iOS 9.9.13.4 (build 17E5223h) is an official Apple over-the-air update for the iPhone 11 Pro Max, released on 2020-02-05T18:17:33Z. The update package is 3.76 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 57426b6a8af1bad83e06caddc8a3f92990115108.zip.