Toshiba laptop: power works but screen won't turn on.

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slicedash - Jan 21, 2016 at 11:40 AM
 Peter - Sep 13, 2022 at 05:07 AM
Hello,

I have a toshiba laptop of age 1-2 years old. A fex days ago I restarted my laptop and all assuden the screen won't turn on anymore.

When I press the power button: fan goes on, lights on the num-lock flash like it always does at the start but my screen gives no responce.

Any help is welcome :)
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1 response

KY_WD Posts 2053 Registration date Thursday October 23, 2014 Status Member Last seen February 28, 2017   122
Jan 22, 2016 at 11:03 AM
Hello slicedash,

In situations like this it's recommended connecting the laptop to an external monitor to see will there be any video signal going out from the laptop. If it does go out, then there's a need for LCD inverter replacement. If there's nothing showing either on external monitor nor display, but the fans are still working, the problem that you have may be due to the failure of the video chip. Sometimes, after much of a use and less cooling the graphics processor which is responsible for video signal transmission get unsolders, the thermic paste goes away and it gets unsoldered, therefore the screen doesn't show anything. If you possess knowledge of laptops' hardware you can change the paste yourself by opening the laptop and check if the chipset that is next to the processor has got unsoldered or you can bring your laptop to a technician to get it soldered again.

Hope this will help you. Have a great weekend.
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slicedash Posts 5 Registration date Thursday January 21, 2016 Status Member Last seen January 25, 2016
Jan 22, 2016 at 12:02 PM
Thing is that I might have a problem with a booting virus, I tried to get fear the walking dead flight 462 but brought by accident a virus, I thought I got a rid of it but most of my friends told me about this so called booting virus, the virus does exactly what you described which makes you think it's a unsolders problem, only problem rests now on how to get a rid of it.

The virus makes my laptop go on but not boot to get into windows etc to fight it which leaves me in the open desert.
Any ideas on how to handle that little creep?
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slicedash Posts 5 Registration date Thursday January 21, 2016 Status Member Last seen January 25, 2016
Jan 22, 2016 at 02:08 PM
Just tried a recovery disc / repair disc, he reads it but nothing seems to happen.
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