Download iOS 17.5 (21F79) for iPhone 15

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 iPhone15,4
iOS Version 17.5
Release Date 2024-05-13
Update Date 2024-05-05
Sha1sum
63991c525267f5adf72e6ebc8be10fe090d856ce
Sha256sum
071facee10a2aea6946429ca2b9ff20ea80e3d7d6b39a4af9c94fcc05a58f8bc
md5sum
2130da19a0586eaae7408c39bf4922b9
Size 7.53 GB
FileName
iPhone15,4_17.5_21F79_Restore.ipsw
Status

Download IPSW (7.53GB) 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