The front power button ring on the X-Box is divided into quadrants – four of them if you look closely enough. Each “quadrant: indicates a separate problem when it turns red. Here are some common quadrant error configs.

If all of the lights are flashing except the first this means you’re having a general hardware failure. This is the famed 3 red ring failure. The standard procedure of operation is to unplug all cables from the unit, remove the hard drive, put everything back in, and then boot up. Try this first!

If the problem is indicated in the second quadrant of the system, it is overheating. Unplug the unit from the power supply and let it cool down for a while.

Third quadrant of the Xbox 360 ring of light is also diagnosed as a hardware failure, so follow the same procedure as the red ring failure.

If all four lights are flashing on the front of your console then it’s probably a simple fix. Try removing and reinserting the AV cable from the unit, and make sure the cord clicks into place.