Download iOS 15.7.4 (19H321) for iPhone 6s+

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 iPhone8,2
iOS Version 15.7.4
Release Date 2023-03-27
Update Date 2024-06-03
Sha1sum
d6fbf2d5c095d0fcc281569ea1796268ba6b5cb0
Sha256sum
820b041a03b4d4942ba8433812b94c90e54161f5b433e25c0301ad9a7239918b
md5sum
c8679ceab05d48198000607e7fac4aae
Size 5.05 GB
FileName
iPhone_5.5_15.7.4_19H321_Restore.ipsw
Status

Download IPSW (5.05GB) Check device info
Release Notes

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

This update provides important security fixes and is recommended for all users.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222