iOS 9.9.14.3 (build 18C66) is an official Apple over-the-air update for the iPhone 12, released on 2020-12-14T18:13:19Z. The update package is 4.23 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: 89bcfa1307982fb027693a1deafb12416fc58c62.zip.