Download iOS 15.7.8 (19H364) 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 15.7.8
Release Date 2023-07-24
Update Date 2023-07-13
Sha1sum
d58ade6df26def2741a7604b432076ea8596f187
Sha256sum
3039794ab226ecf0213c9688735c421ca2ae814b9f51d1dc580e545c1dca3660
md5sum
f4734e7211d608971c49259e2362f9c7
Size 4.91 GB
FileName
iPhone_4.7_15.7.8_19H364_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 security fixes and is recommended for all users.

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

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