Download iOS 9.0.1 (13A404) 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 9.0.1
Release Date 2015-09-23
Update Date 2015-09-19
Sha1sum
08c4663aab453c7781121315304c0f71ea412363
Sha256sum
f9c454b851781c5eee319bee23fbd97388216e1c385b972dc5f8d1bea36ceb60
md5sum
2af7255bd01e7ff91a4cd640071da30f
Size 1.81 GB
FileName
iPhone6,1_9.0.1_13A404_Restore.ipsw
Status

Download IPSW (1.81GB) Check device info
Release Notes

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

This update contains bug fixes including:

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

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