Download iPadOS 8.4 (12H143) 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 8.4
Release Date 2015-06-30
Update Date 2015-06-26
Sha1sum
83d327877d37e2d5246a7594c9336158b9a05ae6
Sha256sum
2bfe345cd3693efdc032889837f59dc8a14bb8c99d2f89a9f4fac58092c4ba3e
md5sum
78d878db9e62c4f285d717fb266818c3
Size 1.89 GB
FileName
iPad4,1_8.4_12H143_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 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