for 60 seconds to drain all static power.
If your screen works for a moment when you turn it on (showing the Lenovo logo) but then goes black, it's likely a Windows or driver issue.
The issue is likely with the graphics card (GPU), RAM, or motherboard. 4. Check for a "Ghost" Image
three times by turning the laptop off as soon as the logo appears.
If the shortcut doesn't work, a power cycle can clear "stuck" signals in your hardware.
Sometimes the screen is on, but the backlight has failed. Shine a at an angle directly onto the screen. If you can see faint icons or your login screen, your backlight is broken, and the screen needs a professional repair. 5. Boot into Safe Mode
Did your screen before it finally went dark?
Use a straightened paperclip to press and hold the button inside this hole for . This can often jumpstart a system that seems completely unresponsive.