Download iOS 16.4 (20E247) 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 16.4
Release Date 2023-03-27
Update Date 2023-03-23
Sha1sum
848aaab5d7f06f14e2ba2c9d348efa0460c1e2fd
Sha256sum
fb43cb919fe22e8c6b05cea23963a5b9e9d616bb19e224e8399894abe3ed1e7b
md5sum
215b039f863950966f36fdc04a422ddf
Size 6.31 GB
FileName
iPhone13,4_16.4_20E247_Restore.ipsw
Status

Download IPSW (6.31GB) Check device info
Release Notes

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

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