iOS 9.9.16.4 (build 20E247) is an official Apple over-the-air update for the iPhone X (GSM), released on 2023-03-27T17:12:28Z. The update package is 4.49 GB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1d3d4b0989495fb16244528ea6ab6388c7140154.zip.