iOS 9.9.14.4.2 (build 18D70) is an official Apple over-the-air update for the iPhone 12 Pro Max, released on 2021-03-26T17:27:18Z. The update package is 4.14 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: 47ef1c88a82139d0326e70d11e061e1973b3d485.zip.