iOS 9.9.15.0 (build 19A346) is an official Apple over-the-air update for the iPhone X (GSM), released on 2021-09-20T17:13:53Z. The update package is 4.35 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: 44cf668b1bec8e986bbc8390dc1b6b12725d00a3.zip.