A laptop that will not turn on is frightening out of proportion to how bad it usually is. The work is on it, or the photos are, and the machine is giving you nothing to go on. The useful thing to know before you do anything else is that most no-power laptops are not dead. They are unpowered, which is a different problem, and a decent share of them come back in the first five minutes of sensible troubleshooting.
Below are the seven things worth trying, in the order we would try them, and then the point at which trying more stops helping.
START HERE · IS ANYTHING HAPPENING AT ALL?
- Nothing. No light, no fan, no sound. Start at fix one and work down.
- A light comes on but nothing else happens. Power is arriving. Go to fix four.
- Fans spin and the screen stays black. The machine is probably running. Go to fix six.
- It starts, then dies after a few seconds, every time. Go straight to the section on when to stop.
⚠ If there is any chance liquid got into it, stop here and do not press the button again. That one is covered further down and pressing the button makes it worse.
First, Work Out Which Kind of Dead It Is
No power and black screen feel like the same fault when you are standing over it, and they are not. A machine with no power is not receiving or not accepting electricity. A machine with a black screen is very often running perfectly and simply not showing you anything.
The test takes ten seconds in a dark room. Press the power button, wait, and look and listen. A charging light, a keyboard backlight, a fan spinning up, a faint hard drive tick, any of those means the machine is getting power and you are looking at a display fault or a boot fault rather than a power one. Complete silence and complete darkness means start at the beginning.
The Seven Fixes, in the Order We Would Try Them
Work down them in order and stop at the first one that changes anything. All seven are safe to try at the kitchen table with the charger in your hand, and none of them involves opening the case.
- Change the socket and check the charger itself. Try a different wall socket, not a different extension lead on the same one. Look at the charger brick for a light, feel whether it is warm after a few minutes, and check the cable where it enters the brick and where it enters the laptop, because that is where they break. Failed chargers are the single most common cause of a laptop that will not turn on, and they fail without any outward sign.
- Leave it on charge for half an hour and then try. A battery that has gone completely flat, and especially one that has sat flat for weeks, will not respond instantly. It needs a little charge in it before the machine will even attempt to start. Half an hour on the charger before you decide anything.
- Do a power drain. Unplug the charger, take the battery out if your laptop is one of the models where it comes out without tools, and hold the power button down for thirty seconds. Then plug the charger back in and try again. This clears residual charge that can leave a machine stuck refusing to start, and it fixes more laptops than it has any right to.
- Unplug everything else. Docks, hubs, external drives, monitors, a phone charging off the USB port, the lot. A faulty accessory can pull enough current or hold enough of a fault to stop a machine starting, and the dock is the usual culprit. Bare laptop, charger, nothing else.
- Check the charge port by feel, not by force. Plug the charger in and see whether it sits firmly. If it wobbles, if it only charges when you hold it at an angle, or if the light flickers as you move it, the port or its solder joint is the fault. Stop wiggling it at that point, because every wiggle makes the joint worse.
- Rule out the screen. With the machine apparently on but showing nothing, shine a torch at an angle across the display. If you can make out a faint desktop or a login box, the picture is there and the backlight has failed, which is a screen repair rather than anything deeper. Plugging in an external monitor does the same job: a picture on the external screen means the laptop is fine and the display is not.
- Listen for what it is telling you. Some laptops flash the power or caps lock light in a pattern, some beep, and both are error codes. Count the flashes or beeps and search that pattern with your laptop model. Manufacturers publish what those codes mean, and it can take you from "it is broken" to "it is the memory" in a minute.
On a Mac the battery does not come out, so Apple’s own steps for a Mac that will not turn on take the place of fix three. For fix seven, Dell lists what each pattern means in its guide to laptop beep and power light codes, and HP and Lenovo publish the same on their support sites.
If none of the seven has changed anything, that is genuinely useful information rather than a wasted afternoon. It means the fault is inside, and it narrows what we look at first. You can start a quote online and tell us what you already tried, or read what a computer repair covers.
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What the Lights and the Fans Are Telling You
NOTHING AT ALL
Power side
LIGHTS, NO PICTURE
Display or boot
FANS AT FULL SPEED
Cooling
The middle column is the one people write off unnecessarily. A laptop that lights up and shows nothing has usually not lost anything important, and the files on it are fine. It is a repair with a good outcome, and it is a long way from the worst case. If the panel or backlight turns out to be the fault, our guide to laptop screen replacement in Richmond explains what that repair involves.
When to Stop Trying
⚠ STOP HERE, SERIOUSLY
Anything spilled on it, any smell of burning, any sign of swelling under the trackpad or a case that no longer sits flat, or a machine that starts and dies within seconds every time. In all four cases, keep it off and unplugged and bring it in. Repeated attempts to start a machine with liquid or a short in it is how a cleaning job becomes a component job, and a swollen battery is a safety issue rather than a repair one.
Liquid especially. The corrosion carries on long after the machine feels dry, which is why a laptop that took a spill and then worked for two weeks is not a laptop that got away with it. What can and cannot be saved on the board itself is covered in the motherboard and board-level repair guide.
If the Files Are the Real Worry
Say it at drop-off rather than afterwards. It changes the order the work happens in, and on most laptops it is a straightforward job to get the files off before anything else is attempted, because the drive is a separate component from the fault.
It matters most on newer machines where the storage is soldered to the board, because then the files and the fault live in the same place. Either way, tell us first. Data backup and recovery is a service in its own right and it does not have to wait for a decision about the repair.
Before You Bring It In
✓ DO
- Bring the charger. Half of diagnosing a no-power laptop is ruling the charger in or out, and yours is the one that matters.
- Write down what you already tried. It saves us repeating your afternoon.
- Tell us if anything was spilled on it, even weeks ago, and even if it seemed fine afterwards.
- Say at the counter whether the files matter. It changes what gets done first.
✕ DON'T
- Keep pressing the power button on a machine that smells hot or took a spill.
- Wiggle the charger to find the angle that works. That angle is a failing joint and it gets smaller every time.
- Open the case to have a look, especially under warranty.
- Leave it a month because you are dreading the answer. Corrosion and swollen batteries both get worse while the machine sits.
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Laptop No-Power FAQs
Why will my laptop not turn on even when it is plugged in?
What is a power drain and does it really work?
Does a laptop that will not turn on mean I have lost my files?
My laptop got wet and now it will not turn on. What should I do?
My laptop has power but the screen is black. Is that serious?
Usually less serious than it looks. Shine a torch at the screen or plug in an external monitor. If there is a faint picture, or a picture on the external screen, the computer is running and the display is the fault.
Is it the motherboard?
Sometimes, but it is a long way down the list. The charger, the port, the battery and the charging circuit all produce the same symptom and all four are more common. A diagnosis is what tells you which.
How long does it take to find out what is wrong?
A no-power diagnosis is usually quick, because the sequence is short and each step rules something out. You get the fault, the options and a price before anything is opened, and you decide from there.
