I know its possible to switch evo 4g sprint service to boost mobile(also owned by sprint but cheaper 3G) but I have a question about the legality of what seems to involve a process of switching the esn number of boost mobile phone. Has anyone done this or know more about the process. there are loads of people selling these boost mobile evo 4g's when I feel that this info should be open source, especially if its illegal since their clearly making a profit from this. so to reiterate is it illegal to convert a evo 4g to boost mobile are there any clear cut tutorials out there, I've searched but to no avail. thanks in advance.