Dell latitude E6430 not booting

One morning I woke up and my laptop was not able to turn on. Laptop's fan doesn't make sound, there's no display, power button is lighting and caps lock is flashing. Tried switching RAM, hold power button for 30 seconds, nothing worked. (edit) After powering on laptop after 10 seconds it just shutdowns.

What could be the problem?

IT FIXED!!! First I tried reseat lcd cable, and then I just spinned the AC adapter piece where it goes to laptop in the hole.


According to Dell it means there is a memory error

(Scroll down the page to D-series Diagnostic LED's (Prior to 2008) and expand it.)

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