Instructions
Inspect the AV cables if all four rings on the Xbox 360 are lighting up. If the cables are connected, unplug them and plug them back in. Tighten all connections on the console.
Restart the Xbox 360 if the bottom two rings and the top left ring are lighting up. This error could be a system that froze and a simple restart will fix it. If this does not work, turn the system off. Press the button at the front of the hard drive and pull out the hard drive with your hands. Unplug all cables from the back of the system. Snap the hard drive back into place. Plug the cables back into the slots they were in. Turn the Xbox 360 on.
Turn the Xbox 360 off if the two left rings are lighting up. This means that the system is too hot and needs to be cooled down before use.