Download iOS 17.4 (21E219) for iPhone 11 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 iPhone12,5
iOS Version 17.4
Release Date 2024-03-05
Update Date 2024-02-28
Sha1sum
c2c55124bd62fb8484bf09b89229ab9dd23fb734
Sha256sum
0405eb26afa551d395514fe233dac3675344989d66bf6f0d1308b7e2504b8b5e
md5sum
d15f7c11b7d0f42ec4d9097617e1e9e9
Size 7.01 GB
FileName
iPhone12,3,iPhone12,5_17.4_21E219_Restore.ipsw
Status

Download IPSW (7.01GB) 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