iOS 9.9.17.6 (build 21G80) is an official Apple over-the-air update for the iPhone 13 Pro Max, released on 2024-07-29T20:34:53Z. The update package is 5.86 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: 7c5a527ecaa2c81e94b5cc3ba8bff4b625793896.zip.