Download iOS 15.7.7 (19H357) 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 15.7.7
Release Date 2023-06-21
Update Date 2024-06-03
Sha1sum
26474c0ac8d1afb7a0d2fa289796aadf31e54fee
Sha256sum
e4fcaf1f06f947ab3172e497e001837d6d484166248aff43637606dad6a506df
md5sum
1adc690adbdbca334b9ce6aa1ebf6d07
Size 4.91 GB
FileName
iPhone_4.7_15.7.7_19H357_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