Download iOS 17.4 (21E219) for iPhone 13 Pro Max

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 iPhone14,3
iOS Version 17.4
Release Date 2024-03-05
Update Date 2024-02-28
Sha1sum
4c09b4ae4c0a748657157230ff1f34c64c23a43d
Sha256sum
718d6082c6aad64d20df6a8fff2534a911c9f1e88434c03a8dbee94d3837ce63
md5sum
9b3a2db631e37667aca5ef854cc955f5
Size 7.36 GB
FileName
iPhone14,3_17.4_21E219_Restore.ipsw
Status

Download IPSW (7.36GB) Check device info
Release Notes

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

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Apple Podcasts

This update includes the following enhancements and bug fixes:

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

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