Download iOS 15.6 (19G71) for iPhone 13

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 iPhone14,5
iOS Version 15.6
Release Date 2022-07-20
Update Date 2024-06-03
Sha1sum
55b054ff29fd53fe3ecdfde57028d11fffb67c61
Sha256sum
aeaf665693b0cc87a8b085b750a736b68bfd38f5dd5ca31f6357a8cd58943be1
md5sum
6b161d005ce2af06288b3f1c36bb9fcd
Size 6.05 GB
FileName
iPhone14,5_15.6_19G71_Restore.ipsw
Status

Download IPSW (6.05GB) 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