Download iOS 17.5.1 (21F90) for iPhone 15 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 iPhone16,2
iOS Version 17.5.1
Release Date 2024-05-20
Update Date 2024-06-03
Sha1sum
09ec0f44cb82f421af2f5fcbfa7de3beec59570e
Sha256sum
89e1eed78fb37c96e5d98f0dbf9e1569ee63e83b05657226ace2f70df803cd14
md5sum
bf865b8f3977e2c09732a42822206e20
Size 7.71 GB
FileName
iPhone16,2_17.5.1_21F90_Restore.ipsw
Status

Download IPSW (7.71GB) 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