Is your laptop broken? Are you trying to turn it on, but all you see is a blank black screen? This is a very unpleasant situation, but even in such a situation you can try to restore its functionality or at least try to determine what exactly is faulty in the laptop.

Most often, the cause of the malfunction is, but sometimes more serious malfunctions occur, which we will also consider in this article. We will begin identifying the faulty component a little later, since we need to start with other steps.

Step 1: Determining your laptop model

The first place to start is to check the manufacturer and model of your laptop. For example, HP Pavilion dv6, Acer Aspire 5520, Asus EeePC, etc. Usually, there are corresponding inscriptions on the laptop case, on the packaging box (if you have one) or in the documents (warranty card, delivery note).

This information is necessary to more accurately determine the nature of the malfunction, since laptops from different manufacturers may have different external manifestations of the malfunction.

Step 2: Check the warranty

The second thing is to try to check the warranty of your laptop. At this stage, you will also need the serial number of your device (usually located on the laptop case (bottom) or under the battery).

In the photos below, you can find an example of what the serial number looks like on laptops from various manufacturers.


This information will help in determining the warranty status of your laptop, so as not to engage in “self-medication” if your laptop is still under warranty.

You can skip this step if you are sure that your laptop is out of warranty.

How to check the warranty on a laptop? If you don't know how to check the warranty of your laptop, you can use the model and serial number of your laptop.

Step 3: Determining the problem

In order to determine which laptop component is faulty, there is a system of external error code indication. For this, LED indicators (light bulbs) of power (battery charge), as well as indicators of the Caps Lock and Num Lock buttons on the laptop keyboard are used.

When you turn on the laptop, you need to pay attention to one (or more) indicators located on the Caps Lock or Num Lock buttons. These indicators (“lights”) will flash periodically. The number of repeated beeps will indicate an error code.

Where are the Caps Lock and Num Lock indicators on my laptop? If you do not know where exactly these indicators are located in your laptop model, you can use the indication of your laptop model and our technical specialists will try to help you with this.

Using the information below, you can try to determine the problem with your laptop or its faulty component. Basically, this code system is suitable for HP laptops manufactured from 2011 to January 2015, but perhaps some codes are also suitable for most laptops from other manufacturers, for example, Asus, Acer, Sony, Samsung, etc.

1 TIME

CPU

2 TIMES

3 TIMES

MEMORY

4 TIMES

VIDEO CARD

5 TIMES

MOTHERBOARD

8 TIMES

POWER UNIT

  • CENTRAL PROCESSOR FAILURE
  • The central processing unit (CPU) is the main operating component of a computer. If the indication indicates a malfunction of the central processor, then you need to contact a service center for help. You cannot solve this problem on your own. Since a malfunction in the operation of the central processor may be the result of some other, more serious malfunction. For example, incorrect laptop power modes.

  • BIOS ERROR
  • Quite a rare malfunction. May occur when the laptop BIOS is updated incorrectly.

    Most modern laptops have BIOS protection and recovery mechanisms.

    Therefore, if a BIOS operating error occurs, you may not even pay attention to the indication, because... If such an error is detected, the laptop will reboot and the recovery procedure will automatically start. When the recovery procedure is completed, the laptop will also reboot. The only thing you may notice is a longer (than usual) boot process, as well as a message on the screen that the BIOS has been restored after an error. If this error occurs periodically, you may need to update the BIOS

  • MEMORY MODULE FAILURE

    If this type of error occurs, you can use the following recommendations to determine the faulty memory module:

    • Determine how many slots and memory modules are installed in your laptop. The number of slots can be from 1 to 4
    • Try removing each memory module (if there are several) from the slots one by one and installing it again
    • Try installing each memory module one by one (if there are several of them) into the slot numbered 1
      It is possible that only one of the memory modules is faulty
    • Install another similar (with the same technical characteristics) memory module that is known to be good.

Laptops from all manufacturers are equipped with indicators that allow you to track changes in battery performance. You can monitor its status by the color of the indicator and its blinking. Different manufacturers use different color codes, but if your laptop's battery light is blinking, it usually means the charge level is low. If charging does not occur, the cause of the malfunction may be a faulty battery or power supply.

Common indication signals for all laptops

The condition of the battery can be judged primarily by the color of the indication. Typically, blue, green, or purple indicate a high battery level, while red or orange indicates a low battery level. If the battery charging light on a laptop blinks red, this indicates that the battery is low and the laptop needs to be connected to the network as soon as possible.

Sometimes the red color of the indicator remains after connecting to the network; it changes to green only after the battery has gained a certain amount of charge. If the battery charging light on your laptop is blinking, but charging is not happening, you need to pay attention to the indicator on the Windows panel. When discharged to a certain level, the system will add an exclamation mark in a yellow triangle to the battery icon; when the charge drops to a critical level or if there is a problem with the battery, a cross in a red circle appears on the icon.

Indication signals of the most common laptops

Below are the main states of battery charging indicators for laptops from the most famous companies. Using them you can determine what condition the battery is in:

  • Asus. A green indicator indicates a charge level of about 100% when the laptop is running on mains power. The indicator turns orange when the charge drops below 95% and is connected to the network. The indicator does not light up when the laptop is running on battery power and the charge level is above 10%. When approaching a critical point, a flashing orange indicator lights up.
  • Acer. The green indicator indicates power from the network, and the yellow indicator lights up while the battery is charging.
  • Dell. A green indicator indicates charging is in progress, a flashing green indicator indicates that. that charging is complete. Flashing orange indicates a low charge level, while a steady orange light indicates a critically low charge.
  • Sony. If the orange indicator lights up steadily, charging is in progress; if it flashes, charging ends. If the indicator starts flashing orange quickly, there is a problem with the battery or the battery has not been installed correctly.
  • Lenovo. The indicator has only two modes of operation: when the charge level is normal, it is turned off; when recharging is necessary, it turns orange.
  • Samsung. Green color indicates a charged battery, yellow indicates charging process. A flashing indicator indicates that the battery is faulty.

Different models of HP laptops use their own display system, so you can find out about the battery status using the Windows indicator. Additionally, you can install the HP Support Assistant utility.

In case of any problems with the battery, it is recommended to take the laptop to a service center and not try to open and repair the battery yourself. Often such repairs lead to even more serious malfunctions that threaten the operation of the entire device, so it is better to immediately entrust the matter to professionals.

If the battery is deemed unsuitable for further use, you can purchase original models for any modern laptops from us, as well as inexpensive compatible batteries from licensed manufacturers.

Often inexperienced users have a question about why the battery indicator on a laptop blinks. Almost all manufacturers are required to provide battery status indicators on their models. This is necessary to inform the user about the particular state in which the battery is located. The indicators may be on, off, or flashing slowly or rapidly. Each such state indicates a certain state of the battery. Unfortunately, these LED signals on laptops can vary depending on the manufacturer and even the model. Because of this, confusion arises and it is difficult for an untrained person to understand why the battery light on his laptop is blinking.

As already mentioned, most laptop models from different manufacturers have indicators that operate in different states. Depending on the condition of the battery, the indicator may be on, off, slow or fast flashing. The indication may vary depending on whether the laptop is connected to the mains or is in offline mode.

On most models, a green, purple or blue indicator light indicates that the battery has a full charge. On many models, manufacturers separately provide a laptop charging indicator, which shows that the charging process is in progress. This is usually a flashing green, purple, orange or blue indicator light.

As a rule, if the battery indicator is green, purple or blue, then the battery is working. It doesn’t matter whether the indicator blinks or not. If the color is orange, then in most cases this indicates that the battery is being charged.

Laptop manufacturers most often make the battery indicator flash to inform the user that the battery is low. When the battery charge drops below a certain limit, the indicator flashes red or orange until it is connected to the network. There's nothing to worry about, the battery just needs to be charged.

But if the laptop battery indicator continues to blink red or orange when connected to the power supply, this may indicate problems. In this case, the fault may be hidden both in the power supply and in the laptop battery. There may be problems with the correct operation of the indicator itself. In some cases, the indicator may remain red or orange even after connecting to charging. It turns off only after reaching a certain battery level.

Laptop battery indicator in Windows. Red X on the battery icon.

If you have difficulty determining the battery status using the indicator, you can look at the battery data in Windows.

The battery indicator is located in the system tray on the taskbar. If the icon displays an electrical plug, then at this moment the laptop is connected to the network via the power supply and the battery is in the process of charging (or fully charged). If you hold the cursor over the battery indicator in the taskbar, Windows will display information about the current charge level.

If you click on the battery icon, more detailed information will be displayed.

When connected to the network, an electrical plug appears next to the battery icon.

If there is no electrical plug, but the laptop is connected to the network, this indicates problems with the battery or power supply.

When the battery is discharged to a certain level, Windows will display a message about the need to charge and add an exclamation point in a yellow triangle to the battery icon.

If Windows diagnoses battery problems or a critical charge level, the battery icon will have a red cross on it.

If you need to see more detailed information about the state of the laptop battery, then go to the corresponding section in the Windows control panel.

Start menu -> Control Panel -> Power Options. There you can select a power saving plan, set the actions of the power buttons, etc.

Battery indicator readings on laptops from different manufacturers

Below we have tried to collect information about the operation of battery indicators on laptops from popular manufacturers. Perhaps this will help you navigate if there are problems with your laptop's battery. The information has been collected from various sources and may contain some inaccuracies. If you find any discrepancies, please write in the comments. We will fix it promptly.

Asus

Many Asus laptops have a two-color battery charging indicator. It can be in the following states:

  • green. The battery charge is 95-100%. The laptop runs on mains power;
  • orange. The laptop is running on mains power and the charge level is less than 95%;
  • orange flashes. The laptop runs on battery power. Charge level is less than 10%;
  • switched off. The laptop runs on battery power, the charge level is 10-100%.

Acer

On Acer laptops, the battery light basically has two states:

  • yellow. When charging the battery;
  • green color. When powered from an electrical network.

Dell

For Dell laptops, the battery charge indicator works as follows.

When powered from mains:

  • green light is on. The battery is charging;
  • flashes green. The battery charge is almost full;
  • switched off. Disconnected from external power or fully charged.

When powered by battery:

  • does not burn. The battery charge is normal;
  • flashes orange. Battery charge is below normal;
  • orange is on. The battery charge is critically low.

Sony

On most Sony laptops, the manufacturer makes the following indication:

  • orange is on. The battery is charging;
  • flashes green. Charging ends in normal mode;
  • flashes orange. Battery charging ends in sleep mode;
  • fast flashing orange. Battery failure or incorrect installation.

Lenovo

For Lenovo laptops everything is quite simple:

  • indicator is off. The battery has a normal charge level (10-100%);
  • lights up orange. The battery needs to be charged.

Toshiba

Toshiba's battery status indication is as follows:

  • white on. The battery is fully charged;
  • lit amber. The battery is charging;
  • flashing amber. The battery is low.

Samsung

  • green light is on. The battery is fully charged;
  • yellow is on. The battery is charging;
  • flashing. The battery is faulty.

HP

In the case of HP, it is difficult to say anything definitive, since the battery indicator is installed on a limited number of models. The user manuals for many HP models recommend looking at the Windows battery icon on the taskbar. It is recommended to use it to determine when the battery needs charging. You can also use the HP Support Assistant utility for these purposes. Additionally, you can read about.
Once again, we say that the indicator data may not correspond to some laptop models. So, write about inaccuracies and ask questions in the comments. Vote in the poll and rate the material!

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Preface from the author. Unfortunately, there is very little specific information. When writing this article, I had to collect data piece by piece from different forums. I do not guarantee 100% accuracy of the information, and you should not take it as a basis for action. If you have anything to add to the article, or you find an error, send your materials to the email address

1. Signal: The battery indicator blinks 4 times in red (yellow), then 1 time in blue. This is repeated cyclically.
Symptoms: The battery on the laptop does not charge. This message appears on the laptop when running on AC power and the battery is inserted. At this moment, if you turn off the power from the network, the laptop will turn off.
Laptop: Dell inspiron 1300, Dell inspiron 1525 and other models.
Reasons: It is likely that your battery has failed. This could happen due to the fact that you have been working from the network for a long time with the battery inserted into the laptop.
Tips: There can be many reasons for this problem. To analyze the battery, use the Everest program. Sometimes when the battery is not charging properly, it needs to be calibrated. If the Everest diagnostic program shows that the battery is fully charged to 100% in 5 minutes, then the batteries themselves are probably broken. You will have to change them, or buy a new battery.

2. Signal: When connecting the power supply, the battery indicator on the laptop flashes green 1 time for a long time, orange 3 times quickly. This is repeated in a circle.
Symptoms: The battery is not charging. Windows shows 0% charge. When you disconnect the battery, the laptop turns off.
Laptop: Dell D600, Dell Latitude D510, Dell inspiron 1300 and other models.
Solution to the problem: replace the battery with a new one. Your battery has died.

3. Alarm: Battery indicator flashes red.
Symptoms: Without the battery, the blinking disappears, everything works as usual, but as soon as you insert it again, the indicator immediately starts blinking again. In the notification area, the icon displays mains power, but does not show battery charging.
Laptop: Dell Inspiron 1300 and other models.
Solution to the problem: change the battery, because she is out of order.

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19.11.2011, 17:48

In general, a week ago everything was fine, now my wife turned it on but it doesn’t plow, doesn’t turn on.
I plugged in the power cord and the laptop started working, but the red lightning indicator flashed quickly, although
the charge shows 95%.
But without the power supply it won’t even turn on, and if you remove the power supply the laptop shuts down completely.
The laptop is about 4 years old and hasn't been used much. And when I turned the laptop over, there were indicators on the battery, so they were green, today they are not, I checked the battery, the light bulb from the flashlight burned out when I checked it, that is, the voltage there is normal.
Something is wrong with the laptop.

Has anyone encountered this?

19.11.2011, 19:14

19.11.2011, 19:21

19.11.2011, 19:27

After 4 years the battery died, no big deal, you can find a new one. True, there is an ambush; it can be difficult to find for a 4-year-old. I had this happen last year, I wanted to install additional RAM on my 5-year-old laptop, but I was faced with the fact that such memory is no longer produced. This was one of the reasons for purchasing a new device.



19.11.2011, 22:38

I checked the batteries, there are 6 AA batteries hidden in the battery,
The batteries work normally and are charged, in addition there is a battery monitoring program
shows a charge of $95 and the battery in the corner of the tray shows a full charge.
Maybe the circuit in the laptop has gone bad, or maybe there are microcircuits in the battery itself.
Does it turn on without a battery?

20.11.2011, 09:57

Does it turn on without a battery?
Is it at least difficult to write a notic model or is it designed for telepaths or megagurus from notation?

Without batteries it turns on and works, the indicator does not blink, as soon as the battery is plugged in the red arrow blinks.

Laptop DELL inspiron 6400

20.11.2011, 10:17

I checked the batteries, there are 6 AA batteries hidden in the battery,
The batteries work normally and are charged, in addition there is a battery monitoring program
shows a charge of $95 and the battery in the corner of the tray shows a full charge.
Maybe the circuit in the laptop has gone bad, or maybe there are microcircuits in the battery itself.
Well, yes, the battery controller believes that the capacity has dropped to, say, 50 mAh, and that the battery is charged to 95% of this capacity, and the light blinks because it is less than, for example, 5% of the full battery capacity.

20.11.2011, 10:51

Well, yes, the battery controller believes that the capacity has dropped to, say, 50 mAh, and that the battery is charged to 95% of this capacity, and the light blinks because it is less than, for example, 5% of the full battery capacity.

I don’t know about you, but we have a service in one store in Kharkov, they test lithium-pol and lithium-ion batteries and you can find out their real capacity.

In your case, I already wrote above about Everest, it allows you to read the residual capacity from the controller.

And the fact that the banks inside are charged, so the Meyans had a battery standing in the radio tube; if you measure the voltage, it’s charged, and if you discharge it to a load, it only contains 150 mAh from the original capacity of 1500 mAh.


20.11.2011, 11:33

I'll try Everest. But even the indicators on the battery show that the battery is charged; there is also a button on the zipper, apparently for some kind of reboot.
If you press it, three indicators flash one after another.

The battery has indicators, look here

Http://www.techlabs.by/img/img/190731.jpg
So I have them all completely green.

Once again: did you disassemble the battery? did you see the microchip inside? This is a battery controller, it also monitors the actual capacity of the battery in order to prevent it from being overcharged and discharged too deeply. And that’s what lights up these indicators, which are completely green...
95% charge relative to what does the indicator in the tray show you? relative to the nameplate capacity of the battery or relative to its real capacity, which has dropped significantly over 4 years?
And these indicators that you have are completely green, what do they show? charge relative to what??

I wrote above about the battery in radio tubes, so here’s about it: both the radio tube and the intelligent charger show that the battery is charged. And it charges normally, for all its 150 mAh, with a current of 200 mA in just over an hour. And it discharges with the same current of 200 mA in a little less than an hour, which is quite consistent with its actual measured capacity. And not a passport.....

20.11.2011, 11:51

20.11.2011, 12:03

I'll try Everest. But even the indicators on the battery show that the battery is charged; there is also a button on the zipper, apparently for some kind of reboot.
If you press it, three indicators flash one after another.

The battery has indicators, look here
So I have them all completely green.
Perhaps one of the cans is covered (not charging), so no problem. shows normal voltage, but at the slightest load the voltage drops - the controller turns off the battery.
Check each jar separately with a voltmeter when connecting a small load.

20.11.2011, 12:55

This is a Dell disease, it can be treated by disabling the power adapter and battery in the device manager.
So, if I turn it off, the indicator on the laptop case will still blink, so this does not solve the problem, if I just take out the battery, it will stop blinking.
It blinks even when the laptop is turned off. Flashing speed is approximately 100 per minute.

Now I installed the baterry eater program
Here's the screenshot.

In the BIOS there is also 95% charge. And no one knows how to reset the battery to factory data..

20.11.2011, 14:24

Most likely the controllers in the battery are either blocked or covered.
But I can’t check the capacity today because I don’t have a tester, I’ll buy it tomorrow and check it.

How do you check the battery capacity with a tester?? will control the current through the load and the voltage at the terminals?

By the way, I found the Everest report:
Power supply

Power properties:
Current power source Battery
Battery status 54% (Unknown)
Total battery life Unknown
Remaining battery life 4986 sec (1 hour, 23 min, 6 sec)

Battery properties:
Device name 1001PX
Manufacturer ASUS
ID ASUS1001PX
Battery type Rechargeable Li-Ion
Nameplate capacity 23220 mWh
Capacity when fully charged 20736 mWh
Current capacity 11264 mWh (54%)
Supply voltage 10699 mV
Degree of wear 10%
Condition Discharge
Discharge rate 8132 mW

If you recalculate, then 54% of 23220 is 12538.8, and of 20736 is 11197.44, which is much closer to the current capacity.
So apparently in your case, 95% is calculated from “Capacity when fully charged”, and not from “Certificate capacity”.

Does it really take that long to download Everest and launch it??