Ok I have a jailbroke iphone 3G that I need to return to Apple because the headphone jack has stopped working. I have tried 3 different sets of headphones and none work. So if I restore to new iphone using DFU is there anyway apple will be able to see the iPhone was jailbroke before. I have heard something regarding the baseband in the 2.2 update allowing apple to see that your iPhone had been prevoiusly jailbroke. Anyone hear anything like that?