Download iOS 9.0.1 (13A404) for iPhone 6

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 iPhone7,2
iOS Version 9.0.1
Release Date 2015-09-23
Update Date 2015-09-19
Sha1sum
962e6a86e8c871801aac61870b58a8caf42086e6
Sha256sum
f304ca3e13bc177ce30f6994e48cb7dddfef600fa2978db2d4aef410a79ddd21
md5sum
995a4601423a469e0dc8e84c3ef04440
Size 1.83 GB
FileName
iPhone7,2_9.0.1_13A404_Restore.ipsw
Status

Download IPSW (1.83GB) 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