It means your Xbox is broken. You must call Xbox to get it repaired.
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its turned off
If the red rings comeback just do it again.
4 lights is NOT the red ring of death. Different sets of lights mean different things. The RROD is 3 lights (general hardware fault). Having 4 red lights means the AV connection is not working. First thing is to unplug and replug all the AV connections. If that doesn't work, the next step would be replacing the cables Hope It Helps
It means theres an error when it happens just reset (turn xbox 360 of and on again) or if it still does it there mite be something wrong with wires etc.... =)
means it's dead.. see YouTube video on related link and additional video also secrets of PS3 link