Been trying to unroot my phone to as in the video to add the radio 2.0 update and try froyo. I get the phone back to stock, delete the pb31IMG.zip file off the sd card, put the update.zip file on the card reboot to recovery and all the phone does is ask my for the pb31IMG.zip file. If I say no to the pb31img update and try to go to the bootloader all I get is the htc startup screen then the screen with the red phone dealie on it. Gotta yank the battery to get the phone to startup. Any ideas?