Read down a little further
* If you do not see USB:UNKNOWN or USB:BBPIN, then follow instructions listed in a1-a5:
a1) Disconnect the device from the PC.
a2) Keep the Application Loader Wizard window open
a3) Remove the battery and put it back
a4) While the red led is on, reconnect the device to the PC. The led will only stay on for a few seconds
a5) When USB:UNKNOWN appears in the drop down list, you need to immediately select Next