Download iOS 17.2.1 (21C66) for iPhone XS Max (China)

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPhone11,4
iOS Version 17.2.1
Release Date 2023-12-19
Update Date 2025-02-22
Sha1sum
d10a44b5cbef3609331975eee3465ff630f1d7da
Sha256sum
421fb0c427f623eebcc881dc540fdf350a5a477bab7de44cb46e48dbccaaef4c
md5sum
a857e38c18a282b7516cec889e538275
Size 7.09 GB
FileName
iPhone11,2,iPhone11,4,iPhone11,6_17.2.1_21C66_Restore.ipsw
Status

Download IPSW (7.09GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

Phone

Messages

FaceTime

StandBy

Widgets

AirDrop

Keyboard

Safari and Passwords

Music

AirPlay

AirPods

Maps

Siri

Visual Look Up

Health

Privacy

Accessibility

This release also includes other features and improvements:

Some features may not be available for all regions or on all Apple devices. For more information, please visit this website:

https://www.apple.com/ios/ios-17

Some features may not be available for all regions or on all iPhone models. For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

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Frequently Asked Questions

What is IPSWDL.COM?

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IPSWDL.COM is a website that provides download links for IPSW files, which are used to install or restore firmware on Apple devices. These files are sourced directly from Apple's servers.

What is an IPSW file?

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How can I use an IPSW file to restore my device?

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Where can I download IPSW files?

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What is the difference between IPSW and OTA updates?

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Can I downgrade my iOS version using an IPSW file?

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