iOS 9.9.17.4.1 (build 21E236) is an official Apple over-the-air update for the iPhone 12 Pro Max, released on 2024-03-21T17:22:05Z. The update package is 5.76 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: 89f8603abfc12f5222b6ccc31f462afa98afed13.zip.