iOS 9.9.13.4.5 (build 17F5034c) is an official Apple over-the-air update for the iPhone X (GSM), released on 2020-03-31T17:20:21Z. The update package is 3.13 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: 48a1da4bcde22571c79ab1686fe7c2df22b48950.zip.