iOS 9.9.18.4.1 (build 22E6252) is an official Apple over-the-air update for the iPhone 11 Pro Max, released on 2025-04-16T17:27:42Z. The update package is 6.29 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: 74b5ad1951be84517cf7e51a631bf6b1a9b5759b.zip.