Download iOS 15.6 (19G71) for iPhone 12 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 iPhone13,4
iOS Version 15.6
Release Date 2022-07-20
Update Date 2024-06-03
Sha1sum
a09cad27eb661c94979273d138f70aec5e747327
Sha256sum
96d7628f9dfec9b71a4ea06e1197d9fdc3954dd134146eed2b8e524708106e8c
md5sum
29a932170e20f7e73d2237c2401e53bf
Size 6.09 GB
FileName
iPhone13,4_15.6_19G71_Restore.ipsw
Status

Download IPSW (6.09GB) Check device info
Release Notes

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

iOS 15.6 includes enhancements, bug fixes and security updates.

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