iOS 9.9.12.0 (build 16A6366) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-09-12T19:04:10Z. The update package is 2.57 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: 3758e08edf2ebba574f7b531c79ed4a33be0f7b3.zip.