Download iOS 5.1.1 (9B208) for iPhone 4 (GSM)

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 iPhone3,1
iOS Version 5.1.1
Release Date 1970-01-01
Update Date 2024-06-03
Sha1sum
1209f57051f675d0328c08a894b073589f9eeb20
Sha256sum
d3368791fe396923a500d1cfc5692e8e7ba90a6362cc972726af280694aab25b
md5sum
89d5c926c7e4c2fba4d31c55cc25b8bf
Size 0.77 GB
FileName
iPhone3,1_5.1.1_9B208_Restore.ipsw
Status

Download IPSW (0.77GB) Check device info
Release Notes

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

This update contains improvements and bug fixes, including:

For information on the security content of this update, please visit this website:

http://support.apple.com/kb/HT1222