You press the button and nothing, or the laptop lights up but the screen stays black. Before you panic, a lot can be solved with a few simple steps. Let us go through how to diagnose the problem and what to try at home.

First stay calm and diagnose

It is important to find out where the problem is: in the power, the display or the system. The solution differs depending on how the laptop behaves.

The laptop does not react at all

If no lights are on and no fan is heard:

  • Check the charger and socket. Is the power light on? Try another socket and cable.
  • Reset the power (hard restart). Unplug the charger, and if the battery can be removed, take it out. Then hold the power button for about 30 seconds, which drains the residual energy from the capacitors. Put the battery back, plug in the charger and try again.
  • Let the laptop charge for 15 to 30 minutes, a fully drained battery may not turn on right away even if the charger works.
  • Try the laptop without the battery, on the charger only. If it boots this way, the battery is the problem.

The laptop turns on but the screen is black

If you hear the fan and lights are on, but the display stays dark:

  • Check the display brightness with keyboard shortcuts, sometimes it is just turned to minimum.
  • Connect an external monitor via HDMI or USB-C. If there is a picture on it, the laptop works and the fault is in the display, the backlight or the cable to the display. If not, the problem is deeper (graphics, memory, board).
  • Shine a flashlight on the display at an angle. If you can see a faint picture, only the backlight is broken (often a cheaper repair), not the whole panel.
  • Disconnect USB devices and try a power reset.

Beeping and reseating the memory

If the laptop beeps at startup or lights blink in a repeated sequence, that is an error code. The number and rhythm of the beeps points to the cause, most often bad memory or graphics, more in the article on buzzer codes. If you are more confident, reseating the memory (RAM) can help: turn the laptop off, unplug the power, remove the RAM module and carefully push it back in. An oxidized or loose contact is a common cause of a black screen.

The laptop turns on but the system does not start

If you see the logo and the computer freezes or spins endlessly, try safe mode or automatic startup repair. The cause may be the system or the disk, more in the articles on the blue screen and reinstalling Windows.

The most common causes

  • A drained or faulty battery or charger.
  • A faulty display or backlight.
  • A problem with the memory (RAM) or disk.
  • Overheating or a damaged system.

When to go to a repair shop

If none of the steps help, or you suspect faulty hardware (display, motherboard, memory, disk), it is time for a professional. A hardware fault cannot be repaired at home.

Is your laptop not turning on or showing a black screen? Get in touch, we will find the cause and fix it, or recover data from the disk.

This article is part of our Repair and maintenance overview.