iOS 9.9.13.1 (build 17A5844b) is an official Apple over-the-air update for the iPhone 11 Pro, released on 2019-09-19T17:28:51Z. The update package is 3.22 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: 3df65abbfa4ab86583253083d6306453af7d1230.zip.