HELP! used a generic charging cable...

[fullgrown]

today i bought a real cheap micro usb cable and tried to charge my phone with it. when i connected it, my evo rebooted by itself and the battery indicator would show that it's charging but the orange led is off. So i disconnected the cable from my evo, but all of a sudden the orange led came on and the battery indicator would still show that it's charging. so i did a recovery and used the nandroid back up and went back to the last recovery i did. when i did that the battery indicator would show the percentage of the battery left, but when i used my original micro usb cable that came with the phone, it won't charge!!!! can anyone help me? or am i screwed????