If you are on the iPhone OS 3.1.3 with baseband 05.11.07 and haven’t been able to unlock your iPhone 3G and iPhone 3GS with firmware 3.1.3, then there is a good news for you , msft.guy has released a fix for blacksn0w unlocking software to unlock iPhone 3.1.3 with baseband 05.11.07.
How to Unlock 3.1.3 iPhone 3GS/iPhone 3G with Blacksn0w in Windows – Tutorial
Install OpenSSH and MobileTerminal from Cydia
Download and install WinSCP for Windows 7/Vista/XP
Step by step guide to Unlock iPhone 3GS and 3G on firmware 3.1.3
and paste it in the /tmp/ directory of iPhone using SSH and WinSCP
- Download patched blacksn0w.dylib and put it in this /usr/lib/ directory
- Run MobileTerminal and login via root with this command
- After logging in, enter the following command in one go
launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist ; launchctl load /tmp/com.apple.CommCenter.plist ; launchctl start com.apple.CommCenter
- If test load is successful copy this plist file com.apple.CommCenter.plist from /tmp/ iPhone directory to /System/Library/LaunchDaemons/.
- Reboot you iPhone
Your iPhone 3GS/3G 3.1.3 is now successfully unlocked. Guide for Mac users is available here