Download iOS 15.5 (19F77) 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 not being Signed by Apple

Firmware Identifier iPhone14,3
iOS Version 15.5
Release Date 2022-05-16
Update Date 2022-05-11
Sha1sum
94986d25dd9ffcaf317dc7d1d38a96b2195f2eca
Sha256sum
21b47a2da66be8806709edad7b6fa3be1e324aa8025456844fc07ed383c112ca
md5sum
34ec15dedb99b629d4633fdc214a8a71
Size 6.13 GB
FileName
iPhone14,3_15.5_19F77_Restore.ipsw
Status

Download IPSW (6.13GB) Check device info
Release Notes

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

iOS 15.5 includes the following improvements 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