I recently bought a jailbroken iphone 3g for my wife. The software froze quite often so we did a settings reset on it. That did not work. She got on the computer and tried everything she found to keep the springboard from crashing. Nothing worked. When I say she tried everything she did. She searched for 4 days for a solution. We finally decided to rejailbreak it. It worked but the screen was flashing all the time. We decided to do a complete reset on it and rejailbreak it. We did a complete reset on it, and used redsn0w to jailbreak it again. Now it doesn't work. It wants me to connect to itunes. I connect to itunes and it says there is no sim card. I insert her tmobile sim card and it says it is not compatible. What do I do now? Do I have to get an att sim card for it to work or something? I am going nuts because now we have a $200 paper weight! Please if you know what to do respond ASAP!