iOS 9.9.13.3.1 (build 17D5026c) is an official Apple over-the-air update for the iPhone 11 Pro, released on 2019-12-17T18:13:30Z. 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: 7bb5c39a3503ad90b3866045a424d0e47265460a.zip.