I just picked up a PDN and it is running the 7-5 firmware. I wanted to download the latest and and decided to try the USB method. So I followed the instructions from their installer and everything seems fine right up till the end. When I remove the device from USB and then hold the vol + key and power for five seconds a window pops up and gives me two options....shutdown and cancel. If I hit cancel nothing happens at all. If I hit shutdown it shuts down but does not reboot automatically. When I turn it back on and go to see the firmware version it is unchanged. What am I doing wrong?