Download iPadOS 9.2.1 (13D15) for iPad Pro 12.9-inch (WiFi)

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 iPad6,7
iPadOS Version 9.2.1
Release Date 2016-01-19
Update Date 2016-01-12
Sha1sum
88982e01be16b07c1a282b2d3a3dc59b22df9a41
Sha256sum
d5171f00da7617e6a1756874cb03f3c7fa5cc19875bdccf09d72ddef5c7398d3
md5sum
e7b5e19812ff5856c1c85801fb8b41f7
Size 1.94 GB
FileName
iPad6,7_9.2.1_13D15_Restore.ipsw
Status

Download IPSW (1.94GB) 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