Download iOS 12.5.1 (16H22) 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 12.5.1
Release Date 2021-01-11
Update Date 2021-01-08
Sha1sum
c2f16ffb9fcd02462fc1261b83476a8fd92d53cc
Sha256sum
38faf0ae0324d9ea8c4cd9e0180bb455ac2aa423f0e15befd7d69da4b18d1a8c
md5sum
a1737b6ebb580e3d1b1312e88a10334c
Size 2.97 GB
FileName
iPhone_5.5_12.5.1_16H22_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 fixes an issue where Exposure Notifications could incorrectly display logging profile language.

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

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