Download iOS 9.2.1 (13D20) 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 9.2.1
Release Date 2016-02-18
Update Date 2016-02-16
Sha1sum
27eb443e01e034d13ec6b1dce7431d598416a200
Sha256sum
4e20a37e0f3aff2e1864a654491e0f5324b2f74b717460c89f233624cf9eb4c0
md5sum
054ef8e00e121a189831c30e13e43be9
Size 2.05 GB
FileName
iPhone7,1_9.2.1_13D20_Restore.ipsw
Status

Download IPSW (2.05GB) Check device info
Release Notes

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

This update contains security updates and bug fixes including a fix for an issue that could prevent the completion of app installation when using an MDM server.

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

https://support.apple.com/HT201222