iOS 9.9.13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPhone 11 Pro, released on 2020-01-22T18:07:26Z. The update package is 3.68 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: 67956e4bbdb0c05d34452f535f5d0c7376693f67.zip.