Unlock iPhone 3G and 3GS with Ultrasnow

If you want to unlock your iPhone to be able to use any sim Card, maybe you could try this tips. All you need to to do first is to jailbreak your iPhone (here's a link where you can find how to jailbreak your iPhone with Redsn0w). Then you can start to unlock your iPhone with Ultrasn0w, but before doing that you also have to install it first on your smart mobile. Go to Cydia, then add this APT URL http://repo666.ultrasn0w.com (remember the letter "o" on ultrasn0w is actually a zero). Then you can start to download and install the application, after that you can restart your mobile and put your sim card to make it work.