iOS 9.9.16.5 (build 20F66) is an official Apple over-the-air update for the iPhone 11 Pro Max, released on 2023-05-18T17:13:56Z. The update package is 4.77 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: 78f888359bdc1b9e184dcb663eaac4dab14bf15d.zip.