Lenovo G405s black screen

Fauzan_2 · Apr 9, 2017

so recently after i turn off my laptop, i cant turn it back on.
it only shows some black screen with some random colors there, idk what is happening with my laptop i've bought it around 2 years ago. i also uploaded to youtube how my laptop screen shows, the random colors is from the lcd.
the camera led sometimes on but the screen always blank like that, even the fan and cpu is working when i turn on but still the screen wont turn on.

[video="https

/m.youtube.com/watch?v=apdQVk7pPCk"][/video]

please help, i really need this laptop for studying in university

webworkings · Apr 9, 2017

So then it is turning on, but the display isn't? If that is the case, try the following...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.

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