Download iOS 17.5.1 (21F90) for iPhone 13 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 iPhone14,3
iOS Version 17.5.1
Release Date 2024-05-20
Update Date 2024-05-17
Sha1sum
19a678c7d65ce0f2f3440d12fa0adfe99d2be9ba
Sha256sum
2b721ca9a419ebc03f81fddc4a630a9d7263c06db9dd98891c4e6f9d5ea47a4a
md5sum
6bb613304aaffe7a4e6492737c11eb82
Size 7.47 GB
FileName
iPhone14,3_17.5.1_21F90_Restore.ipsw
Status

Download IPSW (7.47GB) 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