Download iOS 12.5.5 (16H62) for iPhone 6+

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 iPhone7,1
iOS Version 12.5.5
Release Date 2021-09-23
Update Date 2021-09-20
Sha1sum
4a5c44e3fdc4a80a569b61ff3ff252e7d6482bfd
Sha256sum
b03bd5c751a76177ddba7fab1d28c8c4876561b41ceb87a517d416f9c5bc588f
md5sum
20f0380b2b064d74260473154bcdeed7
Size 2.97 GB
FileName
iPhone_5.5_12.5.5_16H62_Restore.ipsw
Status

Download IPSW (2.97GB) 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 updates 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