iOS 9.9.17.4.1 (build 21E6236) is an official Apple over-the-air update for the iPhone 13 Pro, released on 2024-03-21T17:20:21Z. The update package is 5.8 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: 26cdb77e688a5ddab3229ad5d5b189aaa68ccd3a.zip.