Download iOS 11.0.1 (15A402) for iPhone 6s

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 iPhone8,1
iOS Version 11.0.1
Release Date 2017-09-26
Update Date 2017-09-21
Sha1sum
aa716a7c8b87575ba9d83126e7a33abe87daeba5
Sha256sum
5e134912a65710d13a2d0fcad9178e79f6f4a45b4910238d49b93b20b2fd12f8
md5sum
eb804f974017cbe7bc2647189ddb3584
Size 2.47 GB
FileName
iPhone_4.7_11.0.1_15A402_Restore.ipsw
Status

Download IPSW (2.47GB) Check device info
Release Notes

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

iOS 11.0.1 includes bug fixes and improvements for your iPhone or iPad.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222