Download iPadOS 8.1.2 (12B440) 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 8.1.2
Release Date 2014-12-09
Update Date 2014-12-05
Sha1sum
aa8f669768e88d9dfa9ff7dc5e632860d8a1eb58
Sha256sum
a7e9b019917be05fc60dabfc1368377b53e3dcb8b18f0504c19dffa14d02a9eb
md5sum
736f608c4b8a8e2b1e9229dcb402453a
Size 1.89 GB
FileName
iPad4,1_8.1.2_12B440_Restore.ipsw
Status

Download IPSW (1.89GB) Check device info
Release Notes

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

This release includes bug fixes and addresses a problem where ringtones purchased through the iTunes Store may have been removed from your device. To restore these ringtones, visit itunes.com/restore-tones from your iOS device.

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

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