iOS 9.9.11.4 (build 15F6079) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-05-29T17:12:23Z. The update package is 2.03 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: c4dad381b6935c567a83f92483411f7fc32a1a2f.zip.