Download iOS 5.1.1 (9B206) 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 2012-04-27
Sha1sum
ee79420677fd12d1f11181ddb1e775f64d426a7c
Sha256sum
md5sum
a4f25b2af99580f1e69c8277d0208237
Size 0.77 GB
FileName
iPhone3,1_5.1.1_9B206_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