New laptop won't turn on. Laptop won't turn on - causes and troubleshooting

Useful tips

Phone recovery Asus phone/smartphone zenfone model 2 laser ze500kl in the operating room Android system 5 with a color TFT screen, 16.78 million colors - 1280x720 dpi made of brick. A modern mobile phone is such a complex thing that it is better not to delve into its insides unless necessary.

It happens that, due to ignorance or carelessness, after an unsuccessful flashing or software change, the phone does not turn on and is blocked. In this condition, an Asus phone/smartphone model zenfone 2 laser ze500kl on the Android 5 operating system with a color TFT screen, 16.78 million colors - 1280x720 dpi called "brick".

It’s clear what to do with a brick, but what to do with such a phone? How to revive it and start it? Of course, there is no universal remedy; for each model asus ze550kl, ze551ml, 6, zc451cg and other models, there are recovery methods phone.

Errors on the phone, how to turn on the phone asus zc500tg, zd551kl, 500. Restoring from a brick state.

Information on how to restore Asus PadFone 2, p526, google nexus 7, Asus p525, garmin a50, p527 phone after flashing or from a locked state, or when the phone does not turn on, you can read on specialized forums and websites.

Carelessness or error when flashing the firmware of the asus phone/smartphone model selfie on the Android 5 operating system with a color TFT screen, 16.78 million colors - 1920x1080 dpi.

If you have done something with your Asus p527 phone, transformer prime tf201, p550 something unhealthy, and after that it stopped loading at all and won’t let you into recovery, FTM or fastboot, then don’t despair. There is one more remedy left:

Restoring dead asus phones that won't turn on at home.

- recovery of asus phones, after unsuccessful firmware. The description posted on the site uses the so-called Jag method. The essence of the method is that it is necessary to make a special Jag plug by soldering contacts (4 and 5) together through a 301 kOhm resistor. This Jag is inserted into an Asus ze550kl phone, color TFT, 16.78 million colors - 1280x720 dpi with the battery removed. More details on how to restore your phone this way are described here.

Restoring your Asus phone to working condition.

- for phone owners. You can view a list of all supported devices, such as asus ze551ml color IPS phone, touchscreen - 1920x1080 dp and others. Motorola FAQ on phone recovery is posted at the link above. The site also provides a description of how to restore a phone by closing the contacts when the battery is removed.

Before restoring the phone, you need to download and install a special program on your PC: Random's Developments Flash&backup. Next you need to: remove the battery, connect pins 4 and 5 on the phone connector (see photo), keeping the needles closed, insert the battery, open the needles , insert the cord into the connector and connect it to the computer, a message should appear in the Random's Developments Flash&backup program that the asus 6 color TFT phone, 16.78 million colors - 1280x720 dpi is connected.

Restoring an Asus phone from a brick state.

- this method of restoring Asus tf300tg, memo pad smart, me301t phones different models, different manufacturers. Upon recovery Asus phone vivotab windows, me371mg, me172v special software is used: a standard flasher from MTS, a programmer from ZTE and a HEX editor. A detailed description with screenshots of the actions is posted on this page of the site (see link).

Restoring an Asus phone using the SEMCtool program.

- this instruction is for restoring some asus models. Symptoms of failure: Asus infinity, tf300t, zenfone 5 lte phone freezes on “Please wait”, the white display flashes, there is no network signal, there is no connection through the DCU-60, neither through “C” nor through “2+5”. The method for restoring phones asus zc451cg color TFT, touch - 854x480 dpi posted on this site is using a service cable, together with SEMCtool v8.7 software, which can be downloaded for free on this site.

Restoring a water damaged Asus cell phone - a drowned one.

- instructions with pictures on how to restore an asus zenfone 2 laser ze500kl, selfie, ze550kl phone after it falls into water. To prevent corrosion of phone elements, asus zc500tg color IPS, touchscreen - 1280x720 dpi, you need to very quickly remove it from the water and remove the battery. Then the case is removed and the phone is placed in a jar filled with rice for two days. The fact is that rice absorbs moisture very well and is an excellent absorbent. Ordinary homemade rice will draw out all the moisture from the smallest components of the phone asus ze551ml, 6, zc451cg, and also prevent corrosion. You can use cat litter as an absorbent at home.

How to resolve "Operation Error" in Java on asus phones.

- instructions for users of asus zc500tg, zd551kl, 500 phones who have problems installing applications or games on their phone. If, when entering the application/game folders, the message “Error during operation” pops up, this means that the Java machine on the phone has crashed asus zd551kl color TFT, 16.78 million colors - 1920x1080 dpi. This problem can be fixed simple removal and inserting the memory card into the phone. If this does not help, you will need more complex actions. To restore the functionality of the Java machine, you will need to reflash the firmware FS file and finalize it. More details on how to do this are described in this article.

How to turn on an asus phone.

To enable touch phone Asus PadFone 2, p526, google nexus 7, you need to do the following:

Press and hold the Power key until the phone vibrates.
- If the phone was turned on, but the screen went dark, press and release the Power key to turn it on.
- an image of a lock will appear on the screen; to unlock the screen, drag the lock icon or click on it.
- when prompted to enter a code, enter the PIN code from your SIM card. In most cases this is 0000 and click OK.
- wait for the phone to start.

Note: The PIN code for the SIM card is located on a plastic card or in the package received when purchasing a SIM card in the salon cellular communications. But be careful, if the PIN code is incorrect three times, you can activate the SIM card only through the PUK code, which is also included in the package received when purchasing the SIM card. If the PUK code is lost, it can only be restored using the passport of a citizen of the Russian Federation for which the SIM card is issued. Therefore, do not enter your PIN incorrectly more than three times. If you have lost your PIN code and there is no way to recover it through your telecom operator, you can do the following.

Cancel the PIN code prompt when turning on your Asus p750, p525, garmin a50 phone. To do this, find another SIM card with a PIN code you know (you can assign a PIN code in the settings) and insert it into your phone. Turn on the phone according to the steps described above, when entering the password, enter the PIN code you know from another SIM card. Having successfully turned on the phone, go to the phone settings and cancel the request to enter a PIN code when turning on the phone asus 500 IPS - 1280x720 dpi. Having done this, turn off the phone and change the SIM cards. Now, when you turn on the phone, the system will not require you to enter a PIN code.

This is, of course, elementary advice, but there are solutions to more serious problems.

Advice. The SIM PIN is initially provided by your network operator, but can be changed in the Settings menu. To correct an error when entering your SIM card PIN, tap the “Delete” icon.

Asus phone won't turn on! Error during phone self-test

The very first thing you need to do is try to reflash your Asus memo pad smart, me301t, vivotab windows phone. But the problem of the phone not turning on can be not only due to “crashed” software, but also due to a breakdown of the phone’s on/off button, breakdown or failure of the battery - charger, etc.

Asus phone won't turn on. What to do?.

- Very detailed description fix the problem Asus me371mg, me172v, infinity phone does not turn on, how to turn on the phone. The article is divided into points, with a solution to each problem point by point: checking the power source - the battery, the power button is faulty, the power button circuits, the power controller or its soldering is broken, secondary power sources - power supply to the processor, memory, etc. devices, software configuration mobile phone Asus 500 IPS phone - 1280x720 dpi.

Instructions for restoring a phone Asus PadFone 2 on the Android 4.0 OS platform on a screen with a resolution of 720x1280, Super IPS color type from a non-working state - brick More details on how to restore the device, turn it on touch asus zenfone 5 lte, go, zenfone 2 laser ze500kl, selfie, ze550kl, ze551ml, 6, zc451cg, zc500tg, zd551kl, 500, PadFone 2, p526, google nexus 7, p750, p525, garmin a50, p527, transformer prime tf20 1, p550 , tf300tg, memo pad smart, me301t, vivotab windows, me371mg, me172v, infinity, tf300t and what to do if cellular smartphone does not turn on.

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Good day, dear friends! Today, I would like to discuss enough with you popular topic, namely: Why doesn't my ASUS laptop turn on?

There are actually quite a few reasons for this. Let me, by tradition, first write absolutely all the reasons why an ASUS laptop does not turn on, and then we will look at each of them in detail.

The charge has run out.
There is no electricity at the outlet.
The battery is faulty.
The power cable is faulty.
The charging socket is faulty.

Now let's take a closer look at each of the reasons.

The charge has run out.

Most often, an ASUS laptop does not turn on for this very reason. Connect the power cable to the socket and try pressing the power button. If there are no changes, check whether the power supply itself is plugged into the outlet. Usually, when the battery is low, one of the lights responsible for the battery should blink, indicating that the laptop does not turn on for this reason.

When you plug the power cable into the laptop, it should light up, indicating that the laptop is charging. (By at least, most mobile PCs have such a light) You can already turn it on and use it. If after connecting the power cable the laptop does not come to life, read the article further.

There is no electricity at the outlet.

Also, the ASUS laptop does not turn on due to the fact that its battery is dead, and even when you plug in the power cable, nothing will change. One of the simplest reasons to explain this is the lack of electricity in the outlet. To check this, try turning on the light, TV, desktop computer and so on household appliances. If they refuse to work, wait until they give you electricity.

The battery is faulty.

But what to do if there is electricity, but the ASUS laptop still does not turn on? First, try starting the laptop without a battery with the power cable directly. To do this, first insert the power cable and press the power button. It is quite possible that the laptop will work, but the battery has simply outlived its usefulness and requires repair or purchase of a new one. If it doesn’t help, then read the article further.

The laptop needs to be cleaned from dust.

It is also possible that you were playing on your laptop or watching a movie, and it turned off by itself. This very often happens because the laptop is overheated and therefore does not turn on. Find the radiator grille and touch it. If it is very hot, you need to remove the battery, and

The power cable is faulty.

This is another common reason why not only an ASUS laptop, but also other laptop models do not turn on. Usually there is a light on the power supply, which indicates that the unit itself is connected to the outlet, which means it is most likely working. If this light stops lighting, take the power supply to a service center. Perhaps it can be restored. If the light is on but there is no power, then perhaps the reason lies in a broken power cable. Take a good look at the cable for any problems. If necessary, it is not difficult to do it yourself using a soldering iron knife and electrical tape. Also, the reason that the ASUS laptop does not turn on may be a faulty charging socket.

The charging socket is faulty.

This reason is also quite common. If the power cable inserted into the laptop is very weak, most likely you need to replace the socket. Read more about how this is done.

Other serious hardware problems.

If you have tried all the options described above, and the laptop still does not turn on, then I recommend that you take it to a service center for diagnostics. Maybe someone in your family dropped it or some kind of liquid. In any case, you are unlikely to solve such a serious problem on your own at home. Diagnosis is not worth it big money. Sometimes, for example, when the motherboard is seriously damaged, it is easier to buy new laptop than repairing an old one (the money will be about the same.)

This concludes the article “ASUS laptop does not turn on” to its logical conclusion. I really hope it helped you. My friend also wrote an article on a similar topic. Maybe you'll find something there that I missed here. Write your questions in the comments and I will try to answer them. Good luck to you!

The laptop does not turn on and does not boot for various reasons - hardware or software. Often it does not start due to problems in the OS, incorrect BIOS operation or after work malicious applications. Next, we’ll tell you why the laptop won’t turn on, and we’ll also describe ways to eliminate most problems that cause the device to not boot.

Determining the source of the problem

I can immediately make a reservation that by the nature of the malfunction you can almost always determine exactly which component of the laptop needs repair. Analyzing the behavior of the device immediately after turning it on can tell you more:

If the laptop completely turns off, and when you press the power button it does not want to turn on and shows no signs of life at all, the indicators do not light up, then this is clearly a hardware problem. In this case, you will have to change individual modules of the device.
When it starts, the light comes on, then when booting Windows crash occurs, then this problem may be software, which can sometimes be solved very easily.

Understanding the problems that result in the laptop still not turning on is already half the way to solving them.

The laptop does not respond when you press the power button

The reason why there are no signs of life on the laptop at all are mainly power problems. I can further advise you to immediately exclude obvious things, for example, check whether voltage is supplied to the device. To do this, simply connect the power supply to the network - most adapters have a light bulb.

If it lights up, then the device is working. The laptop also has lights that light up to indicate that the device is connected to the network.

When the light does not light and shows no signs of life, this indicates a non-working power supply. Sometimes the indicators do not light up due to loose connectors. You can extend the life of the power supply quite easily - you need to turn it on by first inserting the plug from it into the laptop, and then connect the device to the network. This prevents the spark from igniting when connected, causing the contacts to fail more slowly.

If all the indicators are lit when turned on, the problem may be in other devices. I can advise you to proceed with the following steps:

Remove the battery from the laptop and connect the device from the network via the power supply without it. If the laptop starts up and the light is on, then the solution is to buy a new battery.
If the laptop shows no signs of life, replace the battery.
Disconnect external devices.

If, after turning them off, the indication lights up normally and the laptop is working, connect external devices one by one - this way you can determine what caused the failure.

Laptop won't boot but I can hear fan noise

Sometimes the laptop does not turn on due to a non-working screen, although the device itself boots. Perhaps the backlight simply does not light up. You can use hotkeys to enable it. Their usual combination is the Fn button, pressed simultaneously with F2, F4, F5, etc., depending on the model and manufacturer of the laptop.

Sometimes the monitor itself does not show promise, and all sorts of artifacts can be displayed on the screen instead of an image.

To check whether this is the only one that is faulty, the laptop should be connected to external monitor.

How to connect an external monitor

To do this, you will additionally need a cable; it must match the interfaces on the external monitor and laptop. Usually, new devices no longer have the outdated VGA interface, but have modern HDMI.

connect the laptop and monitor with a cable;
connect the devices to the power supply;
The monitor should turn on first, then the laptop.

If the image does not load normally onto the monitor, set the image transmission mode on the laptop by simultaneously pressing Fn and one of the function keys F1...F12, depending on the manufacturer. It usually shows a schematic diagram of a monitor and a laptop. This button is responsible for outputting the image - to the laptop, to the monitor, or feeds it to both devices.

Problems with the video card

If you couldn’t find any signs of life on the laptop on the external device, but all the indicators are on, common reason failure - discrete video card. Due to the frequent launch of “heavy” applications, games, poor performance of the cooling system and heavy dustiness of the device, video cards overheat and quickly fail.

Therefore, to extend their life, do not work on a laptop while sitting on a sofa or bed (this is how you close the ventilation grilles), and for “heavy” games, purchase a special laptop stand with built-in additional fans.

You can fix the problem either by replacing the burnt-out module, or simply by turning it off. If it is turned off, then the built-in graphics will work normally, but serious games will no longer work on the laptop. The switch can be made in the BIOS by setting the Disable parameter for the burned out card. In addition to the described malfunctions, the device often does not boot due to the inoperability of the processor or motherboard.

Incorrect BIOS settings

Another case is that the splash screen image lights up, the display may display information about the laptop, but then it shows an error message, the speaker starts beeping or nothing happens at all, the system does not boot. The main cause of such problems is incorrect BIOS settings. You just need to reset them to default. For this:

Enter the BIOS by pressing the Del (for the Award version), F2 or F10 (for AMI) button several times in a row immediately after turning on the power; sometimes the F1, F3, F10 or F12 keys are used to enter the BIOS.
Find the line Load BIOS Defaults or something similar (in different BIOS versions name may vary).
Exit the BIOS, saving the changed settings.

If the system still does not start, you should pay attention to other laptop modules - their malfunction can cause the same problem.

Other malfunctions that prevent the laptop from booting

When there are problems with something that has stopped working HDD, they can also be diagnosed based on some signs. To do this, just listen to the life of the HDD - the engine may spin the disk for too long in unsuccessful attempts to read information, the heads may also crackle cyclically for a long time. After that, it completely hangs.

When the message “Error loading” is displayed during loading operating system" or something similar, then the problem may also be caused by a hardware or software failure hard drive. However, usually the reason for the impossibility of loading in this case is a flash drive forgotten in the USB connector or optical disk in the drive.

An endless cyclical reboot of the laptop even before loading the OS occurs due to problems with motherboard. Specifically, it could be overheating of the south bridge or short circuit. Their source is often a USB probe. Poor performance of the power supply can cause the problem of the laptop quickly turning off immediately after starting to boot - it goes out because the battery simply stopped charging.

Solving software problems that prevent you from turning on your laptop

When suspicion does not fall on any physical module, you can try to restore or reinstall the OS to fix the problem. This will require installation media or a recovery disk (it is created directly in the system).

Bootloader recovery

If, when you try to boot, the display shows that the operating system is not found at all, you just need to restore the bootloader. Usually similar problems occur when installing a second, older OS. For example, when the computer already has installed Windows 8.1, and you installed “Seven” as an additional one, then problems with loading them are guaranteed.

True, the solution is quite simple:

Boot from the installation media;
Run in initial window installations command line simultaneous by pressing Shift and F10.

To fix the problem, enter the following commands sequentially:

bootrec /FixMbr – creates a new boot entry;
bootrec /FixBoot – new boot sector;
bootrec /ScanOS – search for all installed Windows;
bootrec /RebuildBcd - enters information about found operating systems into the boot storage.

One fine morning (day, evening) you sat down at your laptop, pressed the power button and the laptop did not turn on? Don't be alarmed, we'll look at this problem now. Any computer malfunction, be it hardware problems or software failures, can be identified using the “from simple to complex” method. This is what we will do in the article.

You are required to follow all the steps and methods that are described here. While reading the article, follow the steps that you can do yourself without disassembling the laptop, and only then do the more difficult options that are described in this article. The reasons for a breakdown of this nature can be different: the power supply is broken, there is a problem with the cables, unstable work video cards, hardware problems, burned out motherboard and more. Let's imagine the most neglected option - the laptop does not react in any way to an attempt to turn it on, does not blink its lights and does not make sounds. There can be many reasons for this behavior, let's start by considering those that lie on the surface, after which we will go deeper with each step in search of the problem.

Note: if the indicators on the laptop light up or noise is heard, then we will talk about this breakdown below.

Important! If you still have a warranty on your laptop, now is the time to take advantage of it! Read the article to the end and if you cannot turn on the laptop, then you should not disassemble it, since the service center will tell you what the problem is for free and will decide whether they will do it for free or you will have to pay extra.

Electricity test

So, if your device does not turn on and you are wondering why the laptop does not turn on? Then the first thing you need to do is check if it is receiving enough power to turn on. Just as a car won’t start on a dead battery, a laptop won’t start if it doesn’t receive enough voltage. And the first thing to start with is to check if there is voltage in the outlet to which the laptop is connected. This can be done with a tester, if you have basic knowledge of working with electricity, or simply by plugging any other device into an outlet, or even a table lamp or any other object by which you can understand that there is electricity.

Attention! If you use a tee or whatever it's nice to call surge protector, then that could be the problem. Sometimes, when there is a shock in the tee, the operation may be disrupted and therefore your laptop will not turn on. It is best if you plug the laptop into a power outlet without any adapters to check the functionality of the laptop.

Broken or torn cable

Having made sure that the socket is working, we move on to the “sickest” one. There are devices in the power supply of a mobile computer that are very easy to diagnose: the power supply and the battery. First, let's inspect the block visually. It often happens that our pets simply decided to “play” with the wire in the absence of the owner and damaged it. Or maybe the pets have nothing to do with it, and the wire has become unusable from regular careless handling. You need to inspect the power cord from end to end because it can break in different places. You may have a different power supply, we review the most popular ones in this moment.

Here is the power supply (areas where you need to pay attention are marked in red):

If during inspection you find obvious damage to the wire (if you have a warranty on your laptop, then in any case this repair will be paid for), you can proceed in two different ways:

The functionality of the cable can be restored with a little effort. To do this, you will need to strip the wire at the point of damage and re-solder it to eliminate the possibility of breakage. After this, it is necessary to isolate the place of soldering (one wire from another, and then the general “structure”). The easiest way to do this is with electrical tape. This method is practically free, but it will require a certain set of tools, which includes: a utility knife, electrical tape, solder, a soldering iron, as well as skills in working with the latter.
Replace the unit wire with a new one or entrust the repair to a professional. It will definitely be more expensive than doing it yourself, but it is definitely more reliable if you are not an expert in these matters.

It is possible that you will not see breaks on the cable, but you must also take into account the fact internal failure in the cable. This means that if you do not see the breakdown visually, then there is a chance that it is hidden from your eyes. In case you decide to solder the wire yourself, I can suggest watching a video that talks about repairing a laptop power supply:

By the way, various power supplies for laptops are sold at bazaars, which are cheaper than in computer stores and users buy these devices due to savings. But I want to warn you a little. If the power supply is of homemade origin (and usually these are the ones sold at bazaars), then in the future this power supply must be handled very carefully, because the cables may be thin or made of poor materials. Therefore, if you buy such a power supply, then replacing it, as you understand, is just around the corner. If you buy a power supply, then you should know that it is better to overpay a little for the device and buy it at a computer store.

Additional test of power supply and laptop

Suppose visual inspection passed without results and the wire is intact. Now we disconnect the power supply from the network and from the laptop and try to turn on the laptop. In this case, the power will come from the battery, which should be in the laptop at this moment. If everything works, the problem is in the power supply itself. It could fail and not provide the voltage necessary to operate the laptop. The solution to the problem is simple - you need to replace the power supply. Also, there is no need to clarify one nuance - perhaps the battery has already run out and the laptop will not turn on because of this. To do the next test of the power supply, you need to charge your battery, for example, from another working laptop and then connect the charged battery to your laptop, but the power supply must be disconnected from the laptop. Yes, and when you charge your battery in another laptop, then after charging, disconnect the power supply in the other laptop and leave your battery. If the laptop works, it means the battery is in working order and the question of its breakdown is closed for you.

Important: if used for work universal block power supply (you may have already changed the power supply) with a voltage switch, make sure that the regulator is set to the correct voltage (usually a laptop requires 19 V, but for example, in your case it can work at 15 V, it is better to read the documentation that comes with your laptop or call the service center to clarify this data). This is very important point and it would be stupid to skip this check if you have a problem. If you have a universal power supply that does not fit your laptop, then you need to replace it with an original one, or find a universal one that will fit your laptop.

Note: very often the sockets in laptops break - where the power supply is connected. Therefore, check your nest for damage; you can move it a little to make sure that it is securely fastened. If you think that the socket is broken, then you will have to solder or change the socket. On some laptops this procedure problematic, but at the service center I can do this operation for little money.

In addition, power supplies are often equipped with an indicator (diode) that lights up during operation. If this LED on the power supply does not light up, then the power supply is most likely faulty. During your diagnostic process, also pay attention to the indicator on the laptop itself (this indicator may not be on your laptop). The fact that the laptop “sees” your power supply can be indicated by this indicator (at the power connector or on the front side) or by the backlight of the power button.

Let's say the power supply turns out to be working. In this case, you need to check the battery: turn off the power supply and remove the battery (you need to turn the laptop over and you will see the latches that hold the battery in the case).

After the battery is removed, reconnect the power supply to the laptop and press the power button. If our laptop “comes to life”, we rejoice at the solution found and buy new battery to replace the one that failed.

What does the battery look like:

If the mobile PC is still standing lifelessly on the table, not reacting in any way to pressing the power button after the manipulations have been performed, you should pay attention to the button itself. It happens that during operation the button fails - contact is lost or the latches break. In this case, it is impossible to do without interfering with the internal world of the laptop.

Important: if you are not confident in your ability to disassemble a laptop, it is better to entrust it to professionals - repairing the power button will clearly cost less than a new laptop if it fails.

However, for inquiring minds, I will describe the process for eliminating a possible malfunction:

Filming top cover laptop and get to the button cable, after which we carefully disconnect it.
We check the contacts of the cable and button for cleanliness and integrity. They may be the culprit of your breakdown. If the culprit is the cable, then replace it with a new one.
You can try to repair the cable. Cut a piece of the train down to where it is in good condition.
To clean the cable insulation, it is better to use a blade or a very sharp knife.
Place tape on the other side of the cable (where there are no contacts). Thus, the thickness of the cable will increase and it will be securely clamped in the slot (where the cable is connected).
Now you must insert the cable into the desired slot (from where it was removed) and check its functionality.

Again, we hope for the best, but if repairing the button doesn’t help, don’t despair, there are still plenty of options for getting the laptop started working.

Connected devices prevent the laptop from turning on

Again, we return to methods that do not require disassembling the laptop. Inspect all mobile PC ports for connected devices. It may happen that one of the connected devices prevents our laptop from starting. To test this option, disconnect all connected devices and try turning on your laptop. You need to turn off absolutely everything - flash drives, mouse, etc. USB devices, which are currently connected to the laptop. In your case, only the power supply should be connected and that’s it!

If he “sang”, we rejoice, but we continue to identify the “pest”, connecting the devices back one by one. As soon as the laptop refuses to work, you can classify the last connected device as “enemies of the people” and limit your laptop’s “communication” with it.

The laptop makes sounds, the cooler is running and the laptop has a black screen

If, when you start the laptop, you hear the characteristic sounds of its operation, but do not see the usual picture on the screen, the problem may be hidden in the display or video card. To exclude the first option, you need to connect a regular monitor from a computer to the VGA or HDMI port of a laptop with a known working monitor.

We are trying to turn on a laptop with a monitor connected to it. If the usual pictures appear on the monitor, congratulations, the problem has been found, it lies in the laptop display (or in the cable with which it is connected). If, when you turn on the laptop, a third-party monitor also shows a black screen, just like the laptop’s native screen, it’s probably a problem with the video card.

A laptop video card, like any other component, can fail for many reasons. It needs repair or replacement - competent specialists will decide; it is unlikely that you will be able to fix the problem yourself. It is recommended to send the laptop for service and wait for a professional opinion. However, before visiting the service, you can use one trick, which I will discuss later.

Discrete video card does not work

Most laptops now have such powerful hardware that they can handle heavy applications, often with complex graphics, without straining themselves. Therefore, mobile computers are equipped with discrete (separate) video cards. At the same time, there is also a built-in video card on board, which acts as the main “workforce” in less “rich” assemblies. So, if, in your opinion, a discrete video card has died, it’s not difficult to check. You need to get to the insides of your mobile PC and disable the video card, then see how the laptop behaves.

The specific location and procedure for disabling a discrete video card depends on the laptop model, and in order to do everything correctly, you will have to turn to a search for a query like “how to disable a laptop’s video card ", where instead You need to enter the brand and model of your mobile PC. For such a request, you can easily find not only step-by-step instructions, but also a video, and you will cope with the task without any problems.

RAM has failed

A mobile PC consists of many electronic components, each of which can suddenly fail, and the laptop simply will not turn on. Here’s what’s worth checking during the diagnostic process if you’ve already decided not to send your PC to service yet and climbed inside your faithful “friend.”

First of all, you need to make sure that the memory modules are working correctly. Depending on the laptop model, dies random access memory placed differently. Usually there are inscriptions at the bottom of the laptop, which can be used to understand in which area this or that component of the laptop is located.

As you can see, the arrow shows that you need to open the bolt:

After the bolt is unscrewed, you need to pull this part of the part towards you (in the picture above we see another arrow that shows in which direction the opening occurs):

In the picture I showed the latches that hold the RAM; you need to remove the dies using these latches:

They are diagnosed as follows: find the RAM among the insides of the laptop. If there are several dies, this simplifies the check; you just need to disconnect the RAM modules one at a time and try to turn on the laptop each time. Naturally, if the laptop “starts up” after disconnecting one of the dies, it is probably the one that is faulty and requires replacement.

If there is only one memory module, then to check its functionality you will need a spare module (you can search among your friends). We install another, obviously working, memory stick in place of yours and try to turn on the laptop. It worked - great, the problem was found. No, we continue our search.

By the way, do not forget to visually inspect the contacts when disconnecting certain devices in the bowels of the laptop. They should all be clean and undamaged, and fit tightly in place. The presence of oxides on the contacts is not allowed; this may cause the laptop to not work. If during the inspection you find an oxidized contact, clean it until normal condition and only after that return the module to its place. When you remove the RAM, I recommend cleaning the contacts on the RAM using a regular pencil eraser, but not for pens! Perhaps the contact was weak and the laptop was malfunctioning. You can also blow out the RAM slots with a hairdryer or vacuum cleaner to remove fine dust.

Processor and its weaknesses

I’ll mention one more detail, the “heart” of our laptop – the processor. The laptop may refuse to turn on if there are any problems with the processor. And the first procedure with it, which any computer technician will tell you about, is replacing the thermal paste.

The processor is perhaps the main organ of any computer, its “brain”. IN different laptops A great variety of processors are used, but one feature remains unchanged: any processor needs high-quality cooling. That is why it is usually installed in close proximity to the radiator, so that it can remove the heat produced by the processor and dissipate it, thus cooling the “brain” of the laptop. And in order to achieve maximum heat transfer from the processor to the heatsink, a layer of thermal paste is applied between them - a substance with low heat capacity and high heat transfer rate. Over time, the quality characteristics of thermal paste decrease and it must be replaced with fresh one. Thermal paste can be purchased at any computer store or service center. And the most important thing is the price, it costs from 5-10 rubles, which is enough for 1 time.

IMPORTANT: the processor is a very fragile part that requires careful handling, so replacing thermal paste must be done carefully. Be careful and remember that our goal is to figure out why the laptop refused to work, and not to plunge it into an even deeper “coma” with our actions.

You should also read that thermal paste is applied to different places on the motherboard. When you take your laptop apart, you will see 1-3 objects that need thermal paste.

The laptop turns on, but the operating system does not load

This is the story: we press the power button on the laptop, it makes characteristic sounds, some lines run on the display, but in the end the loading stops, trying to tell us something on the English language(or reboots endlessly). There could be a lot of possibilities as to why the download does not continue as usual. Let's look at the most common of them:

The laptop was shut down incorrectly. Because of this, a failure occurred, and loading instead of the usual operating system gives an error message. The first thing to try is to restart your laptop. Most likely, it will not respond to any keyboard buttons, so we simply hold down the power button for a few seconds until the laptop turns off, and then turn it on again. If the problem repeats, we carry out slightly more complex manipulations: turn off the laptop and remove the battery for ten minutes. While waiting, press the power button 3 times.

Disconnecting the power will allow the laptop to get rid of “negative memories”, and after that it can turn on as if nothing had happened. This method really saves, and I recommend everyone to do this option.

An error has crept intoBIOS(system software, like an operating system at the very heart of a computer). It may be, for example, that the download has been installed from an incorrect source, or the download parameters have been changed. If you are not good at BIOS menu, try to simply reset it to factory settings. For ordinary users The question “comes up”: how to enter this BIOS? In fact, the procedure for entering the BIOS is simple and does not require fancy capabilities from you. By the way, on the site I already talked about how to enter the BIOS and how to set boot priorities in order to install Windows. Link to article. You don’t need to read the entire article (unless, of course, you want to try reinstalling Windows yourself, I recommend reading it), just read the section where I talk about logging in. In short, when you press the laptop's power button, you need to press one of the keys (each manufacturer has its own key): Delete, Esc, F1, F11 or F12.

Menu in different versions BIOS is different, so find the item with the word “defaults”, select it, and then confirm your choice by pressing the “Enter” button. A message will appear asking you “Should I download or not?” Of course you agree, press the “Y” key (“Yes”). The computer will reboot and try to start again.

Here is an example of what your BIOS might look like (you need to go to the “Exit” menu):

Or like this:

Some operating system files are damaged. There are plenty of options for solving this. For example, you can use standard means recovery. If a failure is detected in the OS, the system itself will offer you to restore the last successful configuration (perhaps the system crash was caused by installing software from an unreliable manufacturer). You can also try to run from the so-called LiveCD/LiveFlash. This is a disk/flash drive, respectively, formed in a special way and equipped with everything necessary to boot a PC: system recovery and error correction. Everyone has such a LiveCD in their arsenal. system administrator and a computer service technician. You can also try another method: press the power button on the laptop and immediately press F8, you will see a menu where you select the “Last good configuration» - available in different Windows versions, but some people enter differently. I told you an example for Windows. And finally, you can reinstall the OS if you are sure that the problem is damaged files, but it is not possible to restore the previous working OS.
The OS boot disk is faulty. Hard disks sometimes they fail, and perhaps this moment has come right now. When the laptop boots, the BIOS sends a request to load the operating system to the hard drive, but it is silent. As a result, the OS does not load, and we see an error message or an endless reboot. Unlike the previous point, in this case reinstalling the OS may not help, it will simply be impossible to do. The only thing that will save you in this situation is replacing the hard drive, since in most cases they cannot be repaired. To make sure that the problem is with the HDD, you can also start with bootable flash drive or disk and check performance of hard disk. Most likely, it simply will not be detected by the scanning tools, or you will see a message about incorrect operation. The solution is to replace the hard drive. The site has a very detailed article on how to check any hard drive: "".

In addition to the reasons listed above, there are others. When turned on, the laptop may stop loading or constantly go into reboot (reboot) due to a malfunction of the microcircuits or inconsistent contact of one of them. This is unpleasant, but not surprising - mobile computer often lives in extreme conditions, and is not only subject to vibrations and other physical influences, but it simply accumulates so much dust that at one point it may simply prevent it from starting, damaging something inside. This is why regular cleaning of the insides of the laptop from accumulated dust is so important. Dust accumulates inside, inhibits air circulation, disrupts cooling, and puts all electronic components of the PC at risk.

Cleaning your laptop is easy. To do this, you need to open the lid and, armed with a vacuum cleaner or a large brush, or better yet, both, methodically clean out dust and dirt from the inside of the laptop. The main thing is to approach this issue with extreme caution so as not to damage the laptop components during the cleaning process. And remember: laptop cleaning should be included in the list of regular preventative maintenance and carried out at least once a year if you want your laptop to serve you for a long time.

If even after cleaning the boot situation has not changed, feel free to send the laptop to a service center to identify the problem. If the article was useful to you or you found your problem, you can leave a comment that will allow other users to pay attention to this when testing their laptop.

Often life modern man is simply unthinkable without the use of mobile electronics. To keep abreast of affairs, to influence the dynamics of rapidly developing events and at the same time not to limit ourselves in movement, we humans are helped by a portable computing device that is comfortable in all respects - a laptop. And many are unsettled by a situation that could be described with a single, but such a succinct phrase: “The laptop won’t turn on!” Calm the slight trembling, take a sedative, cast aside all doubts - you can fix everything. And on your own! Without the help of professionals and compassionate care, specialists sometimes unjustifiably inflate the price of repairs. Intrigued? Then let's read!

The magic remedy is diagnosis

You won’t believe it, but 50% of success in electronics repair depends on how correctly you determine the cause of the breakdown. If the laptop does not turn on, it’s time to remember long-forgotten or recent operational issues: falls and shocks, shaking and pressing, as well as unfavorable temperatures. Doubts about the correctness of the settings (during software experiments) also require careful analysis.

Hardware and software malfunctions

There is simply no golden mean. A broken display needs to be replaced, a damaged power cord needs to be repaired, and a common “culprit” in the situation called “laptop screen won’t turn on” is closed button closing the screen cover can completely drive the user crazy who watches the LED indication, hears the rustling of fans and feels the “life” of the hard drive. Cases are also not so rare when an unlucky user “twists” the BIOS in anticipation of wonderful performance from the laptop, or directly in operating environment Switches the video output to an external display receiver. All this and much more is divided into two types of faults:

Hardware - physical damage system component.
Software - incorrectly used settings, software mismatch with the configuration of the computing device.

Why the laptop won’t turn on: typical faults and methods for eliminating them

Now we have reached the climax of this article. Carefully read each individual case presented, and perhaps you will find a reason for the device not turning on that is absolutely similar or vaguely reminiscent of the “symptoms” of your problem. It is worth noting that laptop repair is often truly fraught with mysticism. There is no other way to describe the electromagnetic “whims” of the internal components of the system. Statics actually works wonders! However, let's be realistic and follow the recommendations that explain the actual state of affairs.

So, the first secret: energy

When a laptop won't turn on, the problem is usually a lack of power. First of all, you need to make sure that the adapter with which you are charging is working. accumulator battery device The active light indication on the power supply, as well as near the corresponding laptop connector (at the time of connection), is often deceptive. Therefore, it is advisable to use a known working adapter to verify the functionality of the “doubtful” electrical converter.

Even if you are sure that your laptop’s battery has the proper charge level, but the computer still shows no signs of life, disconnect the battery. Now connect your device to the external one and press the “Power” button. Nothing happens? Go ahead.

In addition to the above, or Why won't my laptop turn on?

If you are seeing a lot of peripherals connected at the same time, the following scenario might be worth trying:

To make it easier for your laptop to start up, disconnect all unnecessary devices - external drives, USB cables and printing devices.
If the laptop is equipped with a special mechanical switch that turns on Wi-Fi or the Bluetooth module, deactivate the wireless connection.
Restart your computer.

Problem solved - great! No - we continue to look for the “culprit of not turning on” further.

Secret two: mechanical damage

For example, your Asus laptop does not turn on. The specifics of the modification are conditional, since further explanation is relevant for everyone mobile devices. What do we have to do?

Pay attention to the integrity of the connector into which the power adapter plug goes. It may have oxidized or been damaged due to intense mechanical impact(insertion/removal).
Connect the power supply and, holding down the “Power” button, carefully move the plug to the sides, up/down.
Follow the indication.

The reason that the Asus laptop (or any other modification of the laptop) does not turn on may be a completely discharged battery. By the way, a battery “landed in deep zero” (may the reader forgive the jargon used) often requires organizing a non-standard type of charging. So don't let deep discharges your battery. A battery that has been idle for a long time can be started using a universal charger.

Secret three: software failure and inability of the device to load the OS

A frequently asked question: “The laptop won’t turn on - what should I do?” may be due to incorrect changes made to the BIOS settings of the computer. If, after the computing device has gone through a short initialization process, you see a dark screen with a blinking cursor, perhaps the following algorithm will help you correct the difficult situation:

Enter the BIOS menu. Typically, to access basic settings (when loading the start screen), you just need to press the “F2” or “Delete” key several times. However, it all depends on the version of your BSVV.
Once you get to the main firmware menu, activate the “Setup Default” or “Factory Default” item. The name of the section that facilitates a rollback to factory settings may be different.
Save changes made and reboot.

In most cases this helps. If the problem “The laptop turns on but does not boot” has not been resolved, proceed to the next step of restoring the device’s functionality.

The fourth secret: the cyclical and endless reboot process

Constantly tumbling the system until the Windows logo appears is a bad sign. Most likely, you will not be able to avoid hardware repairs. Usually this kind of malfunction is associated with a failed north bridge compact computing device.

Conduct a visual inspection of the ventilation grilles. Perhaps you will discover a critical accumulation of dust, which, in turn, will become a kind of proof of the validity of unpleasant assumptions.

The laptop won’t turn on, the screen is black, and at the same time the laptop continues to “live incomprehensibly”, blinking its LED indication ambiguously? Quite often the situation can be corrected.

You should resort to a gradual disabling of the basic components of the computer.
First, disconnect the drive and try to boot without it.
Perhaps the reason lies in the incorrect operation of the RAM - disable the RAM modules.
Perhaps the conflict is caused by the hard drive. Remove the drive from the depths of the laptop.

As you know, the absence of a result is also a result! We continue to look for the reason...

Fifth element of graphical malfunction

If your HP laptop does not turn on, it may well be that the device’s video card has failed. Particular attention should be paid to modifications of the laptop that have a discrete graphics module installed. With intensive use, this component is most susceptible to overheating. The main radiator, the fins of which can be visually seen through the air intake openings, can tell a lot. If the elements of the cooling system are sufficiently contaminated, overheating of the heat-intensive graphics processor is inevitable. Timely detection and a series of subsequent actions can simply be life-saving for a video card that has begun to malfunction.

Some HP laptops (this refers to individual models) are designed in such a way that if a problem arises, “The laptop won’t turn on,” everything is resolved simple removal protective covers and thorough cleaning of contaminated parts.

The sixth secret: visual incidents

Problems with " dark screen" can be resolved. Let's look at a typical type of malfunction, and in the next section we'll figure out how all this can be fixed.

Carefully inspect the matrix for chips and other mechanical damage, the same applies to the connecting cable.
If the laptop screen does not turn on upon startup, the contacts of the button that is activated when the laptop's display lid is closed may be shorted.
Take a closer look, perhaps the matrix displays the picture with no backlight.
If the user has enabled the video output circuit to external device display, the main screen will be deactivated.

Seven unclassified methods for eliminating video troubles

So, you now know something about the reasons for the situation, which can be described as “HP laptop does not turn on.” However, as mentioned earlier, the article specifies universal principles for diagnosing and repairing various malfunctions of compact computing electronics devices. Therefore, you should not focus your attention on any involvement...

Replacing a matrix is a rather difficult task; this process requires appropriate knowledge and, frankly, specialized experience. Therefore, if you are absolutely sure that the screen is physically faulty, contact a service center or an independent laptop repair shop.
To make sure that the button of the lid opening/closing mechanism is working, you first need to dismantle top part device frame. Some models this process incredibly labor-intensive, there is a high risk of damaging the plastic casing of the laptop, as well as some internal components of the system.

incorrect settings

Use function keys, regulating the backlight: “F5+...”. As a rule, such buttons on the keyboard are marked with a corresponding designation.

So now you know what to do if the laptop turns on but the screen does not work. Go ahead.

A few words about other OS troubles

During the process of reinstalling the operating system, the user may encounter some computer misunderstandings:

Incorrect marking disk space in the end it may become big problem for the unlucky user.
Damage to the boot sector on the hard drive will lead to the situation “The laptop turns on, but does not boot.”
A depleted CMOS battery can cause the BIOS settings to keep getting lost. As a rule, during the process of starting the computer, the user will constantly need to press the “F1” key.
An incorrectly set boot priority in the BIOS will result in the user being unable to install the OS on the laptop.

Finally

Well, we can confidently state that with the main reasons and solutions to the question: “The laptop won’t turn on - what to do?” you, dear reader, have read it. As you understand, before opening the laptop, you need to make sure that this is necessary. A thorough inspection of external structural elements, as well as simple experiments with connecting/disconnecting basic computer components will significantly save your time, and at the same time financial resources. Learn to see, hear and feel electronics. Be patient and believe in the success of the enterprise! And then you can easily find the cause of the difficulty: “ Acer laptop won't turn on." Only knowledge and experience can guarantee your competence in solving certain issues related to the repair and operation of portable electronics. All the best to you and success in your endeavors!