iOS 9.9.16.7.15 (build 20H380) is an official Apple over-the-air update for the iPhone X (GSM), released on 2026-03-11T22:03:03Z. The update package is 4.5 GB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 63e89c0c3742bac533c7230165e8ba183b1cc719.zip.