Unlock iPhone 3.1.3 05.11.07 Baseband - blacksn0w

Blacksn0w download is now available which allows you to unlock iPhone 3.1.3 05.11.07 baseband. Remember, this unlock is only for iPhone 3GS 3.1.3 firmware on 05.11.07 baseband. This will NOT work with 05.12.01 baseband.

How to Unlock iPhone 3.1.3 05.11.07 Baseband with Blacksn0w

Download blackra1n.com/blacksn0w.deb, unpack with 7Zip
Copy SystemLibraryLaunchDaemonscom.apple.CommCenter.plist from .deb to /tmp/ on the phone
Copy the patched blacksn0w.dylib to /usr/lib/
Try to execute a test load, make sure you get signal with your T-Mobile SIM -)
ONLY If test load works OK, copy com.apple.CommCenter.plist from /tmp to /System/Library/LaunchDaemons/
If test load does not work OK, the phone will freeze, wait 20 seconds and reboot (Power+Home), upload CommCenter crash logs from /private/var/logs/CrashReporter

[Via Taimur and MsftGuy]