Download iOS 17.5.1 (21F90) for iPhone 13

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 iPhone14,5
iOS Version 17.5.1
Release Date 2024-05-20
Update Date 2024-05-17
Sha1sum
efa94ae702cd42ec9e228ef3a36fc9ed7a80fea6
Sha256sum
4bd80b30745f6a1d3238fd379e1dabaa05b43793c4d97f5d484f77fe3c817124
md5sum
f1de24849ed1b2b3be1373e98f612817
Size 7.35 GB
FileName
iPhone14,5_17.5.1_21F90_Restore.ipsw
Status

Download IPSW (7.35GB) 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