Being all excited to get my iPhone 3G running 3.0 jailbroken, I downloaded PwnageTool 3.0 and built my custom firmware. Went into DFU without any problems, selected my custom firmware, waited....., and then when my iPhone was was finished I looked up into the top left corner only to see 1 bar of signal and no "AT&T" logo. When I went to Settings > General > About > Carrier read "Not Available." So obviously I have no cell service now. No SMS, Calls, Internet (except wifi). What did I do wrong??? My specs: Mac OS 10.5.7 PwnageTool 3.0 iPhone 3G 8GB iTunes 8.2 Please help me!