This patch is already tested on iPhones: 3GS - 3G -2G OS 3.x and works 100%Note: your iPhones must be jailbroken and I repeat again that your iPhone must be AFC2 Support.
Then open the iPhone Password Remover folder and just double click on M.H.M.bat !
a Dos windows will apear. after exiting the window restart your iPhone.
Now your iPhone is Passwordless.
Download iPhone Passcode Remover Tool