Hi,

Thank you for reaching us.

You may try updating the Video driver and BIOS from the following link dell.to/1b9kTD7.

The issue can be due to an outdated video driver .

To get the computer powered on, Please remove the AC adapter and the battery, Hold down the power button for 5-10 seconds, try powering the laptop back on, it may power on.

Hope that helps. Please let us know should you require any further assistance.

Thank you

hi, 

thank you for reply.

i tried above steps. but nothing happened. i still cant see anything on screen.

also when i try to power off laptop using power button, it shuts down instantly as soon as i press power button without having to hold it for few seconds. i also tried d+power button to check display. it shows different colors for about 10 seconds and display again goes black.

Hi,

Appreciate the steps you've tried. D+Power was an inbuilt test for the LCD screen which confirmed the screen is perfectly fine.

The issue could be due to the Motherboard failure.

Please send a private message with the computer's service tag.

To send a private message, click on my name and click start conversation. Thank you

I have the exact same problem as described above.  What was the fix for this?  A new motherboard?

Hi,

if the symptoms are the same and if none of the LCD diagnostics work, then you need a replacement motherboard.

Thanks.