I need some serious help fast; I'm trying to wipe a Blackberry 7230 and reload from scratch. The device has one of the dreaded "PREFETCH EXCEPTION RESET" errors that can't be cleared. I'm trying to run Javaloader "javaloader.exe -usb wipe" ,but upon executing I am unable to perform the action and am only getting the following text:

RIM Wireless Handheld Java Loader
Copyright 2001-2005 Research in Motion Limited
Connecting To Device...Error: unable to open port

The device is attached by the USB cable straight to my computer, and the display on the Blackberry is on the "Prefetch Exception" error.

I'm the "IT Tech" at work, and my boss handed me his blackberry yesterday saying there was something wrong with it. He said it just happened when he turned it on yesterday... Having never even seen a blackberry before let alone used/fixed one, I could use all the help y'all can give. All the research I've done indicates the only solution for the problem is to do the javaloader wipe, but I can't break the code on it.

FYI, I've tried the Blackberry.com tech solution of "remove battery" which didn't work, and I've also tried the desktop manager approach which failed as well.

Thanks,
- Graham