Troubleshoot Samsung Galaxy charging. Why is my phone charging slowly? What can be done in this case? Samsung galaxy s3 does not charge well

Many Samsung smartphone owners are faced with incorrect charging of their devices. Some users cannot achieve 100% charge in any way. Others complain that this process is very slow or the gadget does not react at all when the power supply is connected to it. There may be several reasons for this, and not all of them can be eliminated at home. Let's look at why Samsung mobile phone does not charge and what to do in a particular case.

Possible reasons for improper charging of Android

In all smartphones, the power supply circuit is the most unreliable module. This is mainly due to the fact that charging connectors are often exposed to mechanical stress, and the battery has a limited life.

The main reasons for Samsung Galaxy charging problems are:

• mechanical damage to the supply cable;
• breakdown of the power supply or its inconsistency with the required characteristics;
• failure of the battery;
• damaged or clogged micro USB connector on the phone;
• burnout of the power controller;
• incorrect battery calibration;
• software failure.

Let's try to understand each of the above faults in more detail and, if possible, eliminate it on our own.

Mechanical damage to the power supply system of Samsung Galaxy

The supply chain of any smartphone can be conditionally divided into several components:

• charger (adapter);
• power cord;
• micro USB connector;
• battery;
• microcontroller.

In this list, the most vulnerable element is the cable that connects the gadget to the charger. This is due to the fact that during operation it undergoes frequent twisting and bending, which negatively affects its service life. Therefore, first of all, check its performance. To do this, take a cord that is known to be working and try to charge your phone with it. If everything is ok, replace the cable with a new one. Fortunately, it is inexpensive.

Long term use or strong voltage fluctuations can damage the power adapter. Its check also consists in connecting a third-party charger to the smartphone. If the unit is damaged, buy a new product from a specialized store.

When choosing a new adapter, special attention should be paid to its output power (how many amperes it delivers). If you get a low-power unit to replace the two-amp charger, then the process of fully charging your Samsung will take a very long time.

The phone may not charge well if the micro USB connector is loose or dirty. Try the following:

1. Turn off your smartphone and remove the battery from it.
2. Hold the device near a bright light and check the output connector for dirt, dust and oxidation. If necessary, clean it with a brush, soft cloth and rubbing alcohol.
3. Check if the micro USB input is loose. It is quite possible that it will need to be re-soldered.
4. Turn on the gadget and connect a known working power supply to it.
5. At intervals of 1-2 seconds, shake the plug in different directions. When doing this, pay close attention to the charging indicator. If it comes to life in one of the positions, the cause of the malfunction lies in the poor contact of the power cord and the micro USB connector.

Mobile phone batteries have a limited lifespan. Therefore, with long-term use of Samsung, it is quite possible that it is he who is the source of all problems. To check the performance of the battery, you must:

If the electrical parameters of the battery do not correspond to the norms or its appearance is in doubt, try replacing the battery with a new one.

Samsung may not charge when the power controller is out of order. It is quite difficult to check its performance at home. So it is better to entrust it to specialists.

Android software malfunctions

Charging your phone improperly can cause its software to malfunction. Due to such problems, the microcontroller will begin to misinterpret the information about the state of the battery. As a result, it will not fully charge or not respond at all to the connected power adapter.

One of these failures is a battery calibration failure. You can fix it as follows:

After completing these steps, the old batterystats.bin file will be deleted, and a new one will be written in its place. You just have to completely discharge the Samsung, and then recharge it to 100%.

The name "mobile device" speaks for itself - it should work normally even in the absence of stationary power supplies. However, modern processors and hardware in smartphones and tablets, as well as large displays, demonstrate a remarkable appetite for battery power. Despite this, in order to maintain attractiveness for buyers, gadgets with increased power should still remain as autonomous as possible. Moreover, according to the results of many surveys conducted, the indicators of the device's operating time are one of the most significant when choosing a suitable model.

At the same time, mobility depends not only on the operating time without recharging, but also pay attention to the charging speed. To date, special accelerated charging technologies have already been developed, which make it possible to replenish the device's battery by 70% in just half an hour. However, the declared capabilities for some reason do not always work, so now we will try to consider the difficulties that users may have.

USB cable quality

In case of problems, you should not immediately look for updates for your gadget or even buy a new battery - first of all, you should check the USB cable, which may be damaged. Manufacturers often do not pay enough attention to this part in terms of the length of uptime. Moreover, in recent years, the use of organic harmless substances as a protective coating for a cable is becoming more and more popular, which is an additional factor in its accelerated wear. As an example, you can remember the same Lightning.

So, it is worth checking the charging cable for breaks in the protective coating and testing the performance on other devices. If no problems are identified, you should look for the cause of the slow charging in another, otherwise a simple replacement of the USB cable with a new one will help.

Also, the USB port itself may be damaged, or corroded if it came into contact with water.

Insufficient power supply

Connectors on a stationary PC or on a laptop can not always provide a good current for charging a gadget. Indeed, according to the specification, USB 2.0 ports provide a power of only 2.5 W (5B / 0.5 A), and USB 3.0 gives a maximum of 4.5 W (5V / 0.9A).

Adapter problems

It is necessary to check the power adapter for the presence / absence of external damage. In the absence of those, you can check its quality characteristics. If the adapter is designed to transmit a current of 1 A, charging the device will take longer than using an adapter that provides 1.5-2 A. In this case, the capabilities of the smartphone itself should be taken into account, since not every device is capable of charging with high currents. It is best to use the supplied standard charger. But modern gadgets often support, and most often a special QC adapter designed to use this function has to be purchased separately.

Outdated smartphone model

If your gadget hit the market more than two years ago, you shouldn't expect from it the same charging speed that modern models of 2015 can demonstrate, which have built-in support for various accelerated charging technologies. In order to be at the peak of progress, you need to constantly update your smartphone.

Battery failure

Keep in mind that the battery's ability to provide adequate power to the device will deteriorate over time. Even after 1-2 years, the smartphone will take longer to fully charge, and after 3 years, the gadget may experience unpredictable shutdowns when the battery charge drops to 50 percent or less. In this case, replacing the battery should solve all problems - on your own in the case of a replaceable battery or with the help of a service center in the case of a built-in one.

Samsung phone won't charge

Faced with the problem of recharging your smartphone, you can solve a number of problems yourself. With an inspection and a little diagnostics, you can easily rule out or eliminate the most obvious and common reasons why your Samsung Galaxy, A3, S6, S4, S3 and other models stopped charging.

The most common causes of Samsung smartphone not charging

• deep discharge;
• power cord and power supply;
• connectors;
• accumulator battery;
• software problems;
• mechanical damage;
• moisture ingress.

Let us examine in more detail each possible area due to which the manifestation of such a defect is possible.

Deep discharge of the battery

If you do not follow the manufacturer's recommended discharge and recharge mode, then without receiving power from the mains on time, the gadget could get a deep discharge of the battery. This happens when the voltage drops to the required nominal value, which is indicated directly on the battery itself in Volts.

And now, when connected to a PC or charging, the devices cannot recognize your smartphone. At home, it will help to leave the gadget connected to the charger for a long time (several hours). Or use the "frog" device.

In most cases, this helps to restore the battery capacity, or a Samsung phone repair workshop will help you, where a laboratory power supply with the required power will be used for this.

Charger

Diagnose charging on another device, connect the cable to the PC. It is necessary to eliminate the problem of recharging in the cord and power supply.

Examine the power cord and power supply carefully. Visually, they should not be damaged in any way. The cord should be even, without bends, kinks, fractures. The insulation should be along the entire length.

If you find any damage, be sure to replace it with a new cord or block. The use of such components is fraught with short circuit and failure of more serious and expensive components of the phone.

Connector problem

The next step is to inspect the charger connector. Obvious mechanical damage will immediately indicate the need for replacement.

Also, the problem may be poor conductivity due to pollution (dust, moisture corrosion). It is convenient to use a toothbrush. Clean the connector carefully and try plugging in the charger again.

Accumulator battery

It is likely that the Samsung Galaxy, A3, S6, S4, S3 and other models are not charging due to the failure of the battery itself. The swelling of the battery or its oxidation speaks directly to this. Then you need to replace it with a new one. You can do this yourself, or you can contact the service center specialists.

Software crash

Some malicious applications are capable of doing this kind of damage to your gadget. Regular anti-virus cleaning of the program is required to prevent any malfunctions in the smartphone. If you can no longer turn on the gadget, as it is discharged, contact a specialist for recovery work. They will reset the settings to the factory settings or offer a flashing.

More serious reasons why a Samsung smartphone stopped taking charging will be determined at a service center and it is best to fix the defect there. So you will receive a guarantee for the work performed and free service in case of recurrence of the problem.

If your phone is charging slowly, then you should not think that the problem lies only in the charger or battery. In fact, the problem, as well as the solution, can be much simpler. What if my phone is charging slowly or not charging at all? What are the causes of this problem?

Bad contact

It is not uncommon for the metal coating to have poor contact inside the USB port or on the charger cable. This can be either a defect due to the fault of the manufacturer, or wear of the cable.

What should I do if my phone is charging slowly due to poor contact? Switch off the device and remove, if possible, the battery. After that, all contacts should be cleaned with something like a thin needle. This must be done very carefully and carefully. After cleaning, the battery must be replaced and reconnected. This method often helps to restore normal charging.

Dust and debris in the charging port

Many people carry their gadgets in their jeans pockets, and they contain small fibers that can cause the phone to charge slowly. Masters very often come across just such an incident. What to do if fibers or dust get caught in the connector? It can be brought back to normal by blowing compressed air from a can. You can use a powerful cold air dryer or a compressor. After cleaning, the phone starts charging normally.

Replacing the cable

The most fragile part of the entire charger is the cable. Due to constant bending, it quickly breaks down, as a result of which the phone charges very slowly. What to do? The easiest way to diagnose a damaged cable is to temporarily replace it with another one. In the event that the other cable with the device works as expected, then the original wire is faulty. If not, then the reason is not in him.

Replacing the adapter

So, the problem with the cable is out of the question, but is the phone still charging slowly? In this case, you need to check the charger itself for operability. If the design allows you to pull the cable out of the adapter, then the check will be simple. You can often come across chargers whose ports have been badly worn out due to the large number of plugs and unplugs of the cord.

You also need to check the adapter and cable on other phones. This will help ensure that the problem is not with the mobile device itself. And it will also be useful to check the outlet.

The main thing is safety

Do not charge the device near water or in extremely humid conditions, as well as in extremely hot conditions. You do not need to keep the device connected to electricity for too long. If it takes just three hours to charge, why leave it on recharge overnight? Because of this, over time, the phone charges slowly and discharges quickly.

If there is a need to replace the wire or the charger itself, then you need to be careful, since cheap copies from Chinese manufacturers can be sources of danger. Recently, there has been an increasing number of cases of mobile phone fires due to poor-quality adapters.

Battery Replacement

The battery life cannot last forever. After 4-5 years of use, its capacity is lost, which is why the phone is slowly charging. The more frequently the charging and discharging processes occur, the sooner the battery will deteriorate. If the battery stops working after just six months of use, then this is not normal. In this case, you should contact the seller.

Sometimes a defective battery can be easily identified after inspection. If it is swollen, it should be replaced immediately.

Charging from the correct source

Many people charge their gadgets from computers and laptops. They have a question: why is the phone charging slowly? The ports on the computer are too low. The phone will always charge much faster from the wall socket.

The problem may also be that an adapter is used from a completely different device, for example, from a headset, which is not intended for a phone at all. One often hears a complaint that Samsung phone is charging slowly. At the same time, users charge it using an adapter from other models. But all adapters supply different output voltages.

Updating software or downgrading to a previous version

Updates to your phone can negatively impact your phone's battery life. This is especially true when the old model is updated to the new version of "Android". Fresh models are usually optimized for updates.

If the reason lies precisely in this, then you can try to roll back to the previous version of the software. For starters, it makes sense to try a factory reset, as device manufacturers often recommend. This will help avoid data loss due to a different version of the operating system.

In the same way, the charging problem can be solved by installing a newer version of the software.

Turn off your phone

Applications often run in the background. Their use significantly affects the duration of the charging process. For example, if a browser is running, Skype and something else, then the smartphone will take much longer to fully charge.

You can turn off the device and put it on charge. This will make the process go faster.

Calibrating the Battery Charge Indicator

In conclusion, you need to remember about another type of problem: the indicator on the screen shows that the charge is full, and the device turns off very quickly and requires recharging. Most people think that the battery has deteriorated. But often the reason lies elsewhere. This happens after flashing the phone. After its completion, the battery needs to be calibrated, which many people forget. The bottom line is that after replacing the firmware, the phone does not know how much charge remained. Therefore, you need to calibrate the display to indicate the correct battery charge.

Buying an expensive smartphone these days (due to the rest of the dollar exchange rate) is even more expensive and responsible business than a year ago. Therefore, it is doubly insulting if the newly purchased phone somehow junk.

I'll tell you my story related to the Samsung galaxy s3. About six months after the purchase, I began to notice that the phone was discharging very quickly - literally 100% charging was enough for 2 hours.

And I don't even play on my phone! Sometimes she could not touch him, but he was still discharged in an instant! And then one day I just charged the phone, put it next to me, and then after a couple of minutes it beeped - 15% of the charge! how so? I connect it to a charger and it doesn't charge! Horrors immediately scroll in my head: for repairs, a week or more without a phone.

Okay, it occurred to me to remove the cover and look at the battery. And the battery is blown up! Just to a huge size! How has it not yet exploded in my hands? Very lucky! As a result, of course, I did not put the battery back, the next morning I bought a new one, now the phone is charging normally. By the way, the battery could swell from the fact that I left the phone on the charge all night. I don't do that anymore.

But a swollen battery is just one of the reasons the Samsung galaxy s3 won't charge. What other reasons could there be?

2. Defective charger. We have three identical Samsung and three charges at home, respectively. So we noticed that not all chargers charge the same way - some are faster, some are slower. It is important that the charging is original - non-original charging does not charge Samsung well. And in general we have one that not only does not charge, but also discharges Samsung!

3. There may be a problem with the cord. It's easy to check - try charging another phone using charging (the same applies to a removable charger). If the charger is defective, you will need to buy a new one.

4. Problems with the charger inlet in the phone itself. Checking is also easy: take another charger. If several different chargers fail to charge your Samsung galaxy s3 phone, then it's time for a repair.

As you can see, not everything is so scary in cases when the Samsung galaxy s3 does not charge - most often you can buy additional accessories such as a battery or a charger, for which, by the way, the warranty on purchase lasts quite a bit - about a month, it seems.

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