Download iOS 12.1 (16B92) 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 12.1
Release Date 2018-10-30
Update Date 2018-10-20
Sha1sum
9066ddc71a0dc5c42247bcf38045ee0f39ed164f
Sha256sum
ddfa38003c31481a02e7afbd1ff3eed0126c5009cd2deb0b9c3a75ffa4c46bf7
md5sum
a1f55df7c783297ef469df8a63a0d14f
Size 3.04 GB
FileName
iPhone_5.5_12.1_16B92_Restore.ipsw
Status

Download IPSW (3.04GB) Check device info
Release Notes

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

iOS 12.1 introduces Group FaceTime, adds over 70 new emoji, and includes support for Dual SIM with eSIM for iPhone XS, iPhone XS Max, and iPhone XR. This update also includes bug fixes and improvements.

Group FaceTime

Emoji

Dual SIM support

Other improvements and fixes

For information on the security content of this update, please visit this website:

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