Question : Problem: iphone unlock 3g att

how can I unlock an iphone 3g 16gb from att

Answer : Problem: iphone unlock 3g att

There are some useful tools which will do it for you.

Check out
1. WinPwn
http://www.iphonehacks.com/2008/08/winpwntool-2004.html

2. QuickPwn
http://www.quickpwn.com/

3. check this one out
http://www.youtube.com/watch?v=LdC2Jvc66YE


But again, as said earlier, its kinda a bit messy as of now. If you are really require to unlock, you can take a some calculated risk and follow the above methods.