iOS 9.9.17.2.1

iOS

Version

9.9.17.2.1

Build ID

21C66

File Size

5.57 GB

Release Date

2023-12-19T18:58:05Z

Update Type

Normal release

Delta update - requires 12.1.3 installed first.

Download OTA

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About This Update

iOS 9.9.17.2.1 (build 21C66) is an official Apple over-the-air update for the iPhone XS Max, released on 2023-12-19T18:58:05Z. The update package is 5.57 GB. This is a delta (partial) update that requires 12.1.3 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 387534500408f0c0867b48bef124a1e581b12ed0.zip.

Direct URL

https://updates.cdn-apple.com/2023FallFCS/patches/052-17498/3AD9B31B-52C3-4422-871D-F4E17B42C6E5/com_apple_MobileAsset_SoftwareUpdate/387534500408f0c0867b48bef124a1e581b12ed0.zip