So I was running a basic rom on my evo and decided to flash another. Did all the necessary steps and when I rebooted, i get nothing. I see the boot animation then black. I've tried several Roms and am not sure where to go now. I've tried to use RUU to unroot it but can't seem to get the program to work. When I reboot to the bootloader I get an error saying no image found. I think that my sd cared may be messed up. I'm new to this and hope I didn't screw anything up. Help is very appreciated!