Well, basicaly as the title says. The problem is this: I jailbroke a friend's iPhone 3G with QuickPWN, windows version, aparently the Jailbreak was a success. But when I try to boot, the iPhone doesn't move from the boot screen. So I decided to make a force restore, and then Jailbreak again. Now it really was a success, but for some reason the iPhone doesn't recognize the SIM card. It says: "Sin Servicio" (No service). This is strange, I have jailbreak my iPhone 3G and a friend's and this didn't happened. Can anyone please help me solve my problem? I would really apreciate it.