Hey guys, I'm new to the forum and I could use some help. I have been trying to root my EVO 4G using HTCdev method. I'm following the instructions to the letter and everything seems to be going well up until step 8. When I type the the prompt, a message appears on my PC stating "The drive is not ready for use. A door may be open" What does this mean and how do I get around it? Any help would be greatly appreciated!