External monitor says no signal and retina display is not working

my retina display stopped working, then i got an external monitor to view my desktop. I then set my laptop back to its factory settings. but now i can't view anything no matter how many monitors I try. I tried the dvi the hdmi and nothing.

Hi,
Have you tried
1.leaving the screen flipped open,
2.connecting power
3. connecting external monitor; waiting for it to 'wake up';
then 4. closing lid of MBP to activate clamshell mode?

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External monitor says no signal and retina display is not working

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