I have a friend who just got a brand-new 3GS with a week 38 date of manufacture. I understand that he may or not be able to jb it depending on the bootrom version. I guess the only way to know for sure is to put the phone into dfu mode and check the iboot #, right? If so, I know how to get it into dfu mode but I'm not sure what to do beyond that because he is a Windows user. Any help is appreciated.