Toshiba sattelite l300d black screen [Closed]

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Hello, Hello, i been having a problem with my laptop, i switch power on but all i get is a black screen, no cursor. i can hear the machine working, keyboard works and mouse works. i tried pressing F8 to get to safe mode or recovery but nothing. i only can get to bios or boot. i cannot do disck recovery as when i tried both f9 or power + 0 all i get is a windows diagnostic page. i have tried booting from dvd drive with recovery disk but after windows finishes loading files i get told that hdd1 cannot be found.
i do have a horrible feeling that the boot sector has been damaged or deleted,
Any ideas what to do? :(



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i did try external monitor, and that was black screen too lol, something is very bad
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Thank you

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Dear Sir,

Please confirm whether the battery is not exhausted and also get through the below instructions to see whether the problem gets solved.

https://ccm.net/faq/4594-hp-laptop-black-screen-problem

Thank you.
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moneymaker1 , thank you for suggestion but no it did not work

Hey there, have you tried connecting an external monitor to it?

Dear Sir,

Please check whether the graphic card is not faulty.

Thank you.
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Hello Moneymaker1

Could please explain the procedure to check the graphic card.

Thank you very much
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hello,

To check graphic card remove it then clean dust from using a piece of cloth with some alcohol on the surface of copper connectors then fix on motherboard,if same result as before then replace it with new one,this is an extract from closeup22 answers.

Thanks