Reconnect the battery (if removed) and the charger, then turn the laptop back on. 3. Test with an External Monitor
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 How Do I Fix Black Screen On My Lenovo Laptop
This triggers the screen. Select Advanced options > Startup Settings > Restart . Press F4 to enter Safe Mode. Reconnect the battery (if removed) and the charger,