iOS 9.9.16.4.1 (build 20E252) is an official Apple over-the-air update for the iPhone 13 Pro Max, released on 2023-04-07T17:13:45Z. The update package is 5.04 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: 4751f69d362867f49d050efce72ae8d5ed7f328c.zip.