iOS 9.9.12.1.2 (build 16C6101) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-12-17T21:05:22Z. The update package is 2.55 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: 1f4eeca543caa3e892d7c735fd64c8745e6beb3a.zip.