Download iOS 15.8.1 (19H380) 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 15.8.1
Release Date 2024-02-01
Update Date 2024-01-09
Sha1sum
7a54a17d7668098de7363e92e5fd54f49b424d34
Sha256sum
4f85f04ba52793b9879de7e7f8b3aa7a15ed98a500b0a590f7eb70d754c4eb1b
md5sum
1d5d0cf1b19b9211f48d5e4bb39cc423
Size 4.91 GB
FileName
iPhone_4.7_15.8.1_19H380_Restore.ipsw
Status

Download IPSW (4.91GB) 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