Download iPadOS 9.1 (13B143) for iPad Air (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 iPad4,1
iPadOS Version 9.1
Release Date 2015-10-21
Update Date 2015-10-16
Sha1sum
d2dce5d5f314ea106690c083a6b342c5073cdb01
Sha256sum
cecd3dcffb42fdcedf173f7e66e7c23d419e99d22aeae601050c4994469a333d
md5sum
5f020a17cb7f57bd362aea3d760a9805
Size 1.79 GB
FileName
iPad4,1_9.1_13B143_Restore.ipsw
Status

Download IPSW (1.79GB) 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