iOS 9.9.16.1.2 (build 20B6110) is an official Apple over-the-air update for the iPhone 13 Pro Max, released on 2022-11-30T18:13:35Z. The update package is 4.8 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: b3c1be1678859358da6065997afa157de8a4b3dc.zip.