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Repair and disassembly guides for the Compaq Presario CQ40.

31 Questions View all

Caps lock & scroll light blinking continously

Caps lock & scroll light blinking continously and laptop screen is blank...Unable to start the laptop

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1 Answer

It's mother board problem and I was also having the same issue. Need to replace the mother board.

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Rakesh will be eternally grateful.
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