iOS 9.9.13.5.1 (build 17F80) is an official Apple over-the-air update for the iPhone 11, released on 2020-06-01T17:11:01Z. The update package is 3.45 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: 8db07a8e4d27012de80a3937d7282b3ac4c92103.zip.