Sorry, but a nooby question. What does boot into hboot mean? Is it just powering off the phone then holding down the volume button and press power? If so then can someone explain to me when I download a called PB31IMG.zip and put it into my sdcard then boot my phone up it does not say anything about an update. For instance, I want to update my radio from 1.00.03.04.06 to 2.15.00.07.28.