Download iOS 17.5.1 (21F90) 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 17.5.1
Release Date 2024-05-20
Update Date 2025-02-04
Sha1sum
b8b9b53e56b81056d7edbfacbb279a613daa9db3
Sha256sum
eaa1d9f7da8df40a2b1cf1394abd38cdbcd709fb854aea2f4a0a867e3d770f2b
md5sum
9190b62b420b78cb7b0023079f796b55
Size 7.54 GB
FileName
iPhone15,4_17.5.1_21F90_Restore.ipsw
Status

Download IPSW (7.54GB) Check device info
Release Notes

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

Emoji

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

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Frequently Asked Questions

What is IPSWDL.COM?

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IPSWDL.COM is a website that provides download links for IPSW files, which are used to install or restore firmware on Apple devices. These files are sourced directly from Apple's servers.

What is an IPSW file?

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How can I use an IPSW file to restore my device?

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Where can I download IPSW files?

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What is the difference between IPSW and OTA updates?

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Can I downgrade my iOS version using an IPSW file?

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