Download iPadOS 8.4 (12H143) for iPad Air 2 (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 iPad5,4
iPadOS Version 8.4
Release Date 2015-06-30
Update Date 2015-06-26
Sha1sum
58662f0fc94263e7ba8414c09ada95d86d86be34
Sha256sum
250f11b8372538a537e5fa576780144860f0b2b482b558158f722a1ba550114c
md5sum
c3d0234c2a4ce1b3d033ee24e52c8715
Size 1.95 GB
FileName
iPad5,4_8.4_12H143_Restore.ipsw
Status

Download IPSW (1.95GB) Check device info
Release Notes

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

This update introduces Apple Music—a revolutionary music service, 24/7 global radio, and a way for fans to connect with their favorite artists—all included in the redesigned Music app. iOS 8.4 also includes improvements for iBooks and bug fixes.

Apple Music

iBooks improvements and fixes

Other improvements and bug fixes

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

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