Download iPadOS 9.2.1 (13D20) for iPad mini 3 (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 iPad4,7
iPadOS Version 9.2.1
Release Date 2016-02-18
Update Date 2016-02-16
Sha1sum
207752e93180a062c4996f040480d47dcc9d6365
Sha256sum
ac1cbb6592ed04e616224f5d99cb2c93abc5c5fe372135d91a3a731fe26ad9cf
md5sum
000a1f8201a8b499283efaa97446720e
Size 1.80 GB
FileName
iPad4,7_9.2.1_13D20_Restore.ipsw
Status

Download IPSW (1.80GB) 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