Hi, i just picked up a new 16gb iphone and I would like to unlock it. I prefer to use the ziphone method since it is the easiest but i've been reading that this method downgrades the bootloader from 4.6 to 3.9. Is this bad?? Should I worry? I would like to just unlock the iphone to use on another providers network...do you need to downgrade the bootloader for the unlock? I'm not too interested in jailbreaking... is there anyway to unlock keeping the same bootloader?