Download iOS 15.0.1 (19A348) 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 15.0.1
Release Date 2021-10-01
Update Date 2021-09-29
Sha1sum
7aee713741e99e6d5f2913e6ad134c7d1a8a158e
Sha256sum
35ad939936c039887971a9617495c5d3954760d91c1c8fd729c174e5a61bcbcb
md5sum
aa785f3414fa05365f10f0ffb1e7a132
Size 5.01 GB
FileName
iPhone_4.7_15.0.1_19A348_Restore.ipsw
Status

Download IPSW (5.01GB) Check device info
Release Notes

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

This update includes bug fixes for your iPhone.

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

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