Download iPadOS 8.1.2 (12B440) for iPad Air (China)

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 iPad4,3
iPadOS Version 8.1.2
Release Date 2014-12-09
Update Date 2014-12-05
Sha1sum
9746ebe1a81974a76a8df087cc624b3303c594c5
Sha256sum
3cc4c52af75d70fd32fb1fa4a1c63053e63f47cda6ee2fb7f98db32cd2e881d7
md5sum
2267c4c411623d280056c5a7a1e34c9c
Size 1.93 GB
FileName
iPad4,3_8.1.2_12B440_Restore.ipsw
Status

Download IPSW (1.93GB) 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