If your laptop screen is not displaying correctly, there are a few steps you can take to try and fix the issue. First, hold down the computer's power button until the light goes out and then turn it back on and up the brightness. Next, turn off the laptop and close the LCD screen. Then, remove the AC power cable and other cables from the laptop.
After that, turn the laptop upside down and remove the battery. Use an eraser to clean the metal contacts of the battery and the battery compartment, removing any stains or buildup that may appear on contact lenses. Finally, remove any excess eraser parts from the battery and from the battery compartment. If black appears on the laptop screen, it may be due to a damaged graphics driver or a problem with the backlighting of the LCD screen. To test this, connect an external monitor and restart your computer.
If an image appears on the external monitor, there may be a conflict between the graphics driver and the laptop's LCD screen, causing it to turn black but still work. If your HP laptop screen has turned black but the computer is still working, you can try using EaseUS boot data recovery software to repair it without data loss. Additionally, press F4 until the screen image appears. You can also watch a video tutorial on methods to make a laptop screen go black but that still runs in five ways. Manual Windows repair services are another simple and efficient way to solve this problem. With data securely transferred, you can start the repair procedure by carefully following certain solutions which have proven to be useful in solving this issue.
Finally, check your screen settings such as brightness, refresh rate, resolution and power management as these can affect your Dell laptop's LCD screen performance.