iOS 9.9.17.3 (build 21D50) is an official Apple over-the-air update for the iPhone 11 Pro Max, released on 2024-01-22T18:21:49Z. The update package is 5.44 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: 5c6108826152d400d9fd62a899c887dd0b57a685.zip.