iOS 9.9.14.2.1 (build 18B6121) is an official Apple over-the-air update for the iPhone 12, released on 2020-11-19T18:07:37Z. The update package is 4.03 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: 05f70a084abfeec60b5cb931a7d30b3d59929c34.zip.