iOS 9.9.13.1 (build 17A844) is an official Apple over-the-air update for the iPhone 11 Pro, released on 2019-09-24T17:11:22Z. The update package is 3.44 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: 303568bf2120aa7d10f057f72ed56ddcf1854d56.zip.