Download iOS 15.8 (19H370) 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 15.8
Release Date 2023-10-25
Update Date 2023-10-16
Sha1sum
35c4377214fabaa2878925e7724acadff8a20e20
Sha256sum
8fe6c5d524f18755cdd8e6505bf417fc3ceb83afa8bcc35461953749b0f603d2
md5sum
f1489fe2bea9d6126cfb1562ddd9d48c
Size 5.06 GB
FileName
iPhone_5.5_15.8_19H370_Restore.ipsw
Status

Download IPSW (5.06GB) Check device info
Release Notes

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

This update provides important bug fixes and security updates and is recommended for all users.

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

https://support.apple.com/HT201222