Assuming you already have been able to hook up your blackberry to your pc to perform the OS upgrade with the desktop manager and somewhere along the line things have become totally booched.
Simply pull the battery out of your blackberry.
Connect it to the usb cable while desktop manager is running.
The blackberry will come on and you may receive a screen indicating a lack of battery in the unit. Good.
Run the Application Loader in the desktop manager and follow through the prompts to start the installation. Once the install has started put the batter back in the device.
Allow the upgrade to complete and you will have saved your blackberry from becoming a brick berry.
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