Download iOS 17.5.1 (21F90) for iPhone 12 Pro Max

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

✅ This IPSW firmware is Signed

Firmware Identifier iPhone13,4
iOS Version 17.5.1
Release Date 2024-05-20
Update Date 2024-05-17
Sha1sum
58e1e16c092be767290db1cd1d19df01790b82d9
Sha256sum
cc4e44492cd435b2abc5ad42ce01ed8541db8048c01a93bec1184992e4ce35c5
md5sum
f721ba76c1110c2fe21ccbc0ffba05b2
Size 7.42 GB
FileName
iPhone13,4_17.5.1_21F90_Restore.ipsw
Status

Download IPSW (7.42GB) 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