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 iPhone8,2
iOS Version 11.0.1
Release Date 2017-09-26
Update Date 2017-09-21
Sha1sum
62990dabc302a3c60d55eea88381096a4469d463
Sha256sum
453592e1c0275d061983918b0eb9fdce86c3a5bcd9fef802a7a1093536c068c7
md5sum
58e3906f3e050a2cfbc3321f7415bd3e
Size 2.61 GB
FileName
iPhone_5.5_11.0.1_15A402_Restore.ipsw
Status

Download IPSW (2.61GB) 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