So, I'm trying to unlock my iphone 3G but I'm jailbreaking it first.. It's stuck in recovery mode but I want it in DFU mode so I can install a custom firmware. If I just restore back to 2.0 will I be able to start the whole process over again? Or will that mess it up to where I can't just winpwn it? And there is no way to unlock my iphone without a sim adapter? Like say if I were on a earlier firmware? I'm very familiar with the iPod touch.. But not so much the iPhone.