iOS 9.9.16.1 (build 20B82) is an official Apple over-the-air update for the iPhone 12 Pro Max, released on 2022-10-24T17:13:56Z. The update package is 4.75 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: 5f37bf57d45ace2694f20e824eff79a9e812a5eb.zip.