Download iPadOS 9.2.1 (13D15) for iPad mini 3 (Cellular)

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 iPad4,8
iPadOS Version 9.2.1
Release Date 2016-01-19
Update Date 2016-01-12
Sha1sum
7c467b266c3d46246b8bf96650cc335a3dd5c7ba
Sha256sum
60a51e1539796f5031712a905683e9d1c3510ddca34b29b1f24efc9c5cce267d
md5sum
d2f96d949d6d4cb43edb2e5e5e0c0683
Size 1.85 GB
FileName
iPad4,8_9.2.1_13D15_Restore.ipsw
Status

Download IPSW (1.85GB) 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