how to replace laptop led screen

moresangram

Honorable
Feb 7, 2014
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10,510
My laptop(Dell inspiron N5055) was giving 8 beeps in background, so I thought to reboot.But when i reboot, screen appeared blank with no dell logo on startup. No chance to enter bios, So I press D and power button to start screen diagnostics, then the screen started blinking with complete white then red,green and blue color on screen twice and the screen went off.
So can anyone please tell whether there is problem in my led or in its cable so i can purchase and replace it.