Are you sure you have the correct drivers installed completely? When I did it I hit problems and it turned out that my drivers were not installed completely.
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I installed htc sync manager, got the drivers from there because adb wasn't recognizing the device, once it was recognized, i uninstalled htc sync manager like the instructions for firewater and rumrunner say, went through the firewater instructions and nothing. I then tried rumrunner and get the error.
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