Download iPadOS 9.1 (13B143) for iPad mini 4 (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 iPad5,1
iPadOS Version 9.1
Release Date 2015-10-21
Update Date 2015-10-16
Sha1sum
390680eb7db2d225a790c8682f22be101ba77600
Sha256sum
47337361b0cf7bc60ac68030a1245f9969bb10fd599fa2003b2c8f983ea09d1c
md5sum
e69bc797d70fd682cb1b1cf053d93722
Size 1.81 GB
FileName
iPad5,1_9.1_13B143_Restore.ipsw
Status

Download IPSW (1.81GB) Check device info
Release Notes

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

This release includes new features, improvements and bug fixes, including:

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

http://support.apple.com/kb/HT1222