I'm giving my Dinc to my son after I upgrade to a TB. A friend tells me I need to unroot before switching the Dinc to his number so I've been trying to unroot using Doug's directions. I flashed S-on and I'm trying to flash PB31IMG.zip by booting into hboot but cannot get into hboot. My question is, do I really need to unroot to transfer the phone to my son's number or can I just do a factory reset?