iOS 9.9.14.2.1 (build 18B121) is an official Apple over-the-air update for the iPhone 12 Pro Max, released on 2020-11-19T18:07:59Z. The update package is 4.08 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: 39ae6977c03eee4828baa4a5426b1cd04043ace6.zip.