Download iOS 15.5 (19F77) for iPhone 12

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 iPhone13,2
iOS Version 15.5
Release Date 2022-05-16
Update Date 2022-05-11
Sha1sum
2639dd4f0a16bc699c8a96637bd66ce60ef450fb
Sha256sum
71a2907333edeef6edcf38023c81f180b179c0c07420549b5ca17f2688e9bda6
md5sum
d3becedb24933a778b1f50859316ed68
Size 6.23 GB
FileName
iPhone13,2,iPhone13,3_15.5_19F77_Restore.ipsw
Status

Download IPSW (6.23GB) 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