Introduction
If the LCD screen is not working, it may be a problem with the video card.
Tools
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            Insert a spudger into the notch at the far left side of the top blue panel and pry the hinge cover off. 
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            You may need to pry the other side off as well. You can do this by inserting the spudger between the hinge and the top cover. 
 
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            Pull the small black tab on the right hand side of the laptop. 
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            You have now removed the hinge cover. 
 
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            Using the Phillips #1 remove the screws at the top of the keyboard as indicated. 
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            You will need to pull out the white tab underneath the keyboard upwards until it pops out of its socket. 
 
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            After removing the keyboard, locate and remove the labeled screws. 
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            Gently lift the Video Card unit for replacing. 
 
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To reassemble your device, follow these instructions in reverse order.