Download iOS 8.4 (12H143) for iPhone 5s (GSM)

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 iPhone6,1
iOS Version 8.4
Release Date 2015-06-30
Update Date 2015-06-26
Sha1sum
85344957321f78f296483a2b93bf19c39fcde855
Sha256sum
74d193b10f891522d71aefa96bb5e4c0a60ee5a9215a5c90ccfbeb3b4336dd09
md5sum
2775ed2d53a2296a3e1e3606f98d7b04
Size 1.79 GB
FileName
iPhone6,1_8.4_12H143_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 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