Many owners Samsung smartphones are faced with incorrect charging of their devices. Some users cannot achieve a 100% charge. Others complain that this process it runs very slowly 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 a Samsung mobile phone won't charge and what to do in a specific case.

Possible reasons for Android not charging correctly

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

The main reasons leading to problems with charging Samsung Galaxy are:

• mechanical damage to the power cable;
• failure of the power supply or its non-compliance with the required characteristics;
• battery failure;
• the micro USB connector on the phone is damaged or clogged;
• power controller burnout;
• incorrect battery calibration;
• failure in work software.

We will try to understand each of the above malfunctions in more detail and, if possible, eliminate it on our own.

Mechanical damage to the Samsung Galaxy power supply system

The power supply circuit of any smartphone can be divided into several components:

• Charger(adapter);
• power cable;
• micro USB connector;
• battery;
• microcontroller.

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

Due to prolonged use or severe voltage fluctuations, the power adapter may also fail. Checking it also involves 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 you should pay attention to its power output (how many amps it puts out). If you get a low-power unit to replace a 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 up to a bright light and check the output connector for dirt, dust and oxidation. If necessary, clean it with a brush, soft cloth and alcohol.
3. Check if the micro USB input is wobbly. It is quite possible that it will need to be re-soldered.
4. Turn on the gadget and connect a known-good power supply to it.
5. Shake the plug in different directions every 1-2 seconds. At the same time, carefully monitor the charging indicator. If it comes to life in one of the positions, the cause of the malfunction lies in poor contact between the power cord and the micro USB connector.

Battery mobile phone has a limited service life. Therefore, with prolonged Samsung operation It is quite possible that he is the source of all the problems. To check the functionality of the battery, you must:

If the electrical parameters of the battery do not meet the standards or its appearance is questionable, try replacing the battery with a new one.

Samsung may not charge if the power controller is faulty. It is quite difficult to check its performance at home. So it is better to entrust this to specialists.

Android software problems

Charging your phone incorrectly can cause problems with its software. Due to such problems, the microcontroller will begin to incorrectly interpret information about the battery status. As a result, it will not charge completely or will not respond at all to the connected power adapter.

One of these failures is a violation of battery calibration. You can eliminate 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. All you have to do is completely discharge the Samsung, and then recharge it to 100%.

If your phone's battery isn't charging properly, don't think it's just the battery or the charger that's causing the problem. Based on personal experience, the problem and its solution may be much simpler than you think. If your smartphone or tablet is charging poorly or not charging at all, then check out 10 ways to fix these problems.

Why is the device not charging?

Problems arise to varying degrees. Either the phone doesn't want to charge at all when it's connected, or the process is too slow. Here are some solutions for you.

1. Poor contact

Very often the metal coating inside the USB port and micro USB has poor contact, either through a manufacturing defect or through wear and tear on the cable.

All you need to do is turn off the device, remove the battery if possible, and clean the contacts inside with something like a needle or toothpick. Do this very carefully and carefully, then insert the battery and connect the charger again. 9 times out of 10, that's all you need to do.

2. Clean the charging port from dust and foreign fibers

Do you keep your phone in your jeans pocket? If so, then fibers could be the culprit: we've lost count of the number of times fibers in our clothing have caused faulty charging.

You can also return the charging connector to normal condition by blowing it with compressed air.

3. Try a different cable

The most fragile part of the charger is the cable. It constantly bends, which can damage it over time.

The easiest way to diagnose a damaged cable is to take another one and see if it works properly with your device. If yes, you know that the original charger wire is faulty. If not, then you need to look for a solution further.

4. Use a different adapter

You have ruled out problems with the cable, then you need to check the functionality of the charging device itself. This is much easier if you can pull the wire out of the adapter. We've encountered many chargers where the USB ports have become worn out due to endless plugging and unplugging of the cable.

Also check the charging/wire functionality on other phones as this will help rule out the possibility that it is a problem with your smartphone. In addition, you must make sure that the outlet is working properly.

5. Remember - safety comes first

Do not charge your device near water or in extremely hot or humid conditions. Do not keep the device connected to the charger for too long. Don't leave it charging overnight when it only needs 2-3 hours. This may cause damage hardware.

If you want to replace the charger or its cable, be careful: cheap adapters third party manufacturers quite dangerous. Recently, there have been many cases of mobile phones catching fire due to them.

The video below captured one of these cases:

6. Replace the battery

Life battery does not last forever and after a few years of use it loses its capacity. The more often you charge and discharge it, the sooner it will deteriorate. Of course, if the battery stops working after six months of use, then you need to contact the seller for a warranty.

Some defective batteries can be easily identified by appearance. If it is swollen, then it should be replaced immediately.

7. Charge from the correct source

Charging from a wall outlet will always be faster than from a computer because its USB ports have too little power. Thus, the phone charges much faster from a power outlet.

The problem may also be that you are using an adapter from another device, for example, from a Bluetooth headset, which is not intended for your gadget. This adapter does not supply enough current. In the case of the latest high-end smartphones, you may have a device that supports fast charging, but the adapter is not suitable.

8. Update the software or roll back to the previous version

Software updates can degrade the battery life of a mobile phone, especially when an older device receives a new one. Android version. Newer smartphones and tablets are often optimized for benefits latest version BY.

If this happens to you and you can't find a solution, try rolling back to a previous version. Of course, you can try first full reset, as recommended by manufacturers, so as not to compromise the data on the device due to old version Android.

Likewise, sometimes autonomous operation smartphone can be significantly improved with a fresh update.

9. Try turning it off

Using heavy applications while charging affects the duration of the process. For example, if you are chatting on Skype or playing games, the device will take longer to charge.

Therefore, charge the device in the off state or in airplane mode.

10. Calibrate the battery

Sometimes, the battery charge level displayed on the screen may differ from the actual one. Because of this, your phone's behavior may seem strange to you.

Unfortunately, today people who own Samsung phones suffer from the fact that the phone does not charge or charges, but with great interference. This problem has become quite common recently.

This article is for those people who also encountered this problem. If this problem is discovered, you must immediately take the necessary measures, because this problem cannot be left to chance. Later in the article we will look in detail at why this happens to the phone (it won’t charge) and what to do in such cases.

Cause

If you are trying to charge your phone from computer device or using the standard method through the socket and the Samsung phone does not work, then the reason for this may be a faulty cables. First of all, you need to carefully look at all the cords on your phone. If you checked and they turned out to be intact and working, then the reason is not in them. It is necessary to further search for the cause.

The reason may be:

• It is quite likely that the connector itself is not fixed in the phone. If this is indeed the case, then it will need to be replaced;
• In the event that the same connector is slightly torn out of the so-called printed circuit board, the phone will also not charge;
• The power controller may be broken. If this is indeed the case, then it is necessary to replace it;
• If the phone is , then this indicates damage to the power circuit. This part is quite significant in the entire system, so it is necessary to carry out diagnostics before directly repairing it;
• A fairly small percentage may account for other problems.

It is also quite likely that the problem is that the phone discharges quickly, but very slowly or does not charge at all. Then the problem is in the battery itself.

Such problems are quite common and people do not know what to do in these cases. Therefore, we provide solutions to problems.

Troubleshooting

First of all, it should be noted that if the problem is not with the charger, then it is best to contact a specific service center. They will quickly carry out the necessary diagnostics and determine the cause that you were unable to determine.

In many centers, all parts are available in order to replace the breakdown and provide repairs of the highest quality. Often, in all centers the price for phone repair is acceptable. Moreover, the advantage of service centers is that they provide a guarantee for the entire phone.

A fairly common reason for a phone not charging is a breakdown of certain electronic components in the phone. In the event of such a breakdown in any service center The person must be explained why this malfunction is justified and what to do to prevent this from happening again. It is also worth understanding that when they say that the phone is not charging, they also mean that the phone’s battery is quickly draining.

A fairly common and common reason is the battery breaking down due to long-term use. In such cases, you can simply replace the battery with a new one, and it will last for a long period.

Very often the phone turns off due to low battery when a sound or vibration signal is sent. This is justified by the fact that the phone once fell and such a breakdown occurred.

Not so often, but the phone is discharged due to internal problems, namely, some kind of virus. This reason only happens on smartphones. To prevent such a problem, you must remember that antivirus can be used not only on computers, but also on mobile devices.

There are also failures inside the phone, after which the phone itself cannot recognize the charger. In this case, recognizing the problem, much less eliminating it, is unrealistic. Here you just need advice and help from specialists.

The minimum problem is that there is a glitch in the screen. For example, after flashing the phone, the screen may not display the fact that charging is taking place, but the battery itself safely receives the charge it needs.

Mobile phones have become an integral attribute of every person. It’s hard to imagine life without communications, because with their help you can call or send SMS at any time, anywhere. What to do when this “assistant” stops working? You should not solve the problem yourself. If you do not have special knowledge, you will not be able to repair the device yourself. Today we will look at the question, what to do if the phone does not charge at all and does not turn on?

Such attempts can further damage the gadget, and can result in expensive and time-consuming repairs. And the most annoying thing will be if the mobile phone does not turn on and does not respond to charging due to a broken charger or a broken power button.

The only thing the owner of an android can do is remember under what circumstances it stopped working. If water gets into your Samsung phone, it may not turn on and may not become infected due to the liquid that got there. If you continue to try to charge, the board may become damaged. And this is a very serious breakdown.

Samsung won't charge

What to do if Samsung stops responding to charging? There are quite a lot of reasons here

• First you need to check the cables; perhaps they are bent somewhere. If everything is fine with them, then the reasons may be in the connector.
• Faulty charging connector. For subsequent work it must be changed.
• Your Samsung phone may not charge due to a damaged circuit board. In this case, diagnostics and determination of the extent of damage will be required, which will play an important role in equipment repair.
• Power controller failure. In this case, the only solution is to replace the damaged part.
• Samsung charges poorly and slowly. The cause may be a broken power circuit. To determine the extent of damage, diagnostics will be required. Based on it, the part that led to the malfunction will be installed.
• Other problems due to which the Samsung does not turn on or charge, which can only be identified after diagnostics.

In order to understand how to proceed, you need to find out the causes of the malfunction. If the phone does not turn on and does not charge, then the breakdown may be hidden in any part of the equipment, which an experienced technician will help fix by making a diagnosis.

1. If your smartphone does not turn on after charging, it may be due to a poor battery level. It would seem that the battery is charged and can be used for another day, but in reality it runs out in a few hours. The main reason here will be too a large number of enabled unnecessary features in Android. To prevent the battery from draining and the device not to turn off at the most necessary moment, you just need to disable unnecessary functions in Android itself.
2. To understand why the phone does not turn on, you need to press the “power” button for a long time; if the reason lies in the battery, then it will give a “life” signal and quickly turn off. If it is likely that the battery is simply worn out, then you will have to buy a new one.
3. The Samsung may not turn on after charging due to a broken charging cable. It's very easy to check. If after a couple of minutes the smartphone does not show signs of life, it means that it is not charging, and the cause may be a breakdown of the charger. In modern smartphones, the charger, headphones, and other devices are connected through one opening. It can simply wear out, the contact pads wear out over time, they cannot be restored, only replacing the entire charging module will help. You can check if the charger is broken using another device that needs to be connected to the phone.

If the Samsung, after connecting to the charging cable, still blinks and does not work properly, then there may be two reasons.

• The first is overheating, as a result of which the battery does not receive energy.
• The second is using a charger that is not suitable for your device.

Malfunction of the “on” and “off” buttons

A Samsung phone may not turn on after charging due to manufacturer defects. Most often, the power button does not work due to the fault of the manufacturer itself, as well as as a result of the smartphone falling or falling under water. If your Samsung phone does not respond to charging and does not turn on for this reason, then it must be shown to a specialist.

Software problems

Software glitches can also cause the mobile phone to not charge or turn on. It is possible that some update or firmware has been installed that is not supported. In this case, the system fails or becomes damaged. Sometimes, if you wait, the smartphone can work again.

Mechanical damage

Sometimes the phone does not charge or turn on due to falls or heavy objects hitting it. Very often the phone does not turn on because it falls on the floor. What to do if all of the above reasons do not apply, but the phone still does not turn on or charge?

You can try to remove the flash drive, SIM card or battery; perhaps some contact has come loose. If these manipulations do not help, then the breakdown is very serious and you should contact a specialist.

How can you turn on your phone?

If the Samsung does not turn on and does not charge, you can try following the advice technical support Samsung:

Press and hold the “volume” button down at the same time as “turn on”. Hold in this position for 10-12 seconds.

If the phone works after this, then the reason is most likely a normal device failure. If after this the Samsung does not turn on and does not charge, what should I do? In this case, the optimal solution would be to contact a good repair shop, where they will perform diagnostics using professional equipment and solve your problem. We do not recommend delving into the insides of the phone on your own; you may end up breaking things and will increase the cost of repairs.

Video instruction

Nowadays, many have become so accustomed to life with a smartphone that losing it for a couple of days already seems terrible! The telephone, the Internet, and all the other useful features of a smartphone have made our lives more convenient and, a little more fun. One day my friend Samsung Galaxy S3 began to charge poorly. Remembering the story of its appearance, I realized later that it was just a matter of the charger. Initially, the charger that was included charged it slowly, and I tried to charge it with an old charger from an LG phone: the connectors fit, it charged quickly, everything was fine. Until the charging input into the phone gradually became loose, and in order for the phone's charge indicator to appear, some effort had to be applied. Deciding that it would be easier to buy a new charger, I did just that, buying a charger for 170 rubles at the nearest kiosk. It connected fine, but it charged slowly and eventually ran out of charge (I was using my smartphone while charging). I went to the nearest service center and left the phone for diagnostics and possible repairs. As a result, this trip cost me 1000 rubles. - they said that they had soldered the input socket. I don’t know what they soldered, but the result is the same - the old charger that was charging is not visible, the new charger charges slowly. The service offered me to leave the phone with them for a couple more days for further diagnostics. I decided to solve this issue myself. To begin with, I bought a new battery (original Samsung - for 700 rubles). After searching for information on the Internet, I found a very useful article that helped me (I hope now for sure)! At least now it is clear that the reason for the slow charging was the strength of the supplied current. I installed a program that shows how much mA is supplied. The original battery, as well as the new Chinese one, showed a figure from 100 to 300 mA. There should be a value close to 1000 mA. This is why it charges slowly. As a result, I made one charger from two almost non-functional chargers: a USB cord for a phone - I took it from the original charger and connected it to the power supply (the one that is plugged into the outlet). As a result, it is now charging at 500-700-900 mA. Hooray!

The text I found on the forum http://mdforum.ru/showthread.php?t=11132 is below:

Everything written below is intended primarily for users of the Samsung Galaxy S III ( international version GT-I9300) with original 2100mAh battery

First of all, you need to make sure that the battery in your phone is getting the current it needs.

We install a small but useful program with the GalaxyChargingCurrent widget, in which we will only look at current max readings. For the purity of the experiment, the battery charge should be less than 90%, or even better, less than 70%. Why is this so? - The answer is at the very end under the spoiler "note". We turn on the body for charging from the original one (SAMSUNG) network adapter in the outlet and look in the menu->settings->battery to see if it is charging from the mains (AC), and not from (USB). Then we look at GalaxyChargingCurrent for the current max reading. Ideally, for charging from the network it should be 1000 (just 1A, as written on the adapter). But if it’s 800-900, that’s also normal. If, when charging from the network, it shows 460, then the body has decided that the charge is coming from USB.

Charging the smart phone in the off state will determine which direction to dig in (the normal charging time for the original battery is from 2 to 2.5 hours, small errors are possible).
If the smart device is turned off and charges for about 2.5 hours, and when turned on longer, it means you have problems with the “software”.
If the switched-off smart device charges for more than 3 hours, this means there is a problem with the hardware.
An old/faulty/outdated/dying battery can be charged in less than two hours (there are known cases of charging up to 100% in one hour).

Software problems and ways to fix them

Increased battery consumption may be to blame. In other words, the battery discharges faster than it charges. This can happen for several reasons.

• First reason- it’s you, and the other one is all yours... Sorry =) No matter how funny it may sound, sometimes the user himself is to blame for everything. You should not use the smart phone to its fullest while it is charging. It is not recommended to play heavy games or run power-intensive applications while charging. The more actively you use your smart phone, the longer it will take to charge. Any connection (data transfer via USB, 3G or Wifi) affects the charge duration; an active connection is even more so since it causes the battery to warm up. With an increase in temperature for every 10 degrees, the reaction rate increases by 2-4 times (van't Hoff©), in this case the process of self-discharge and current leakage in the battery increases by 2-4 times, it wears out faster, not to mention the discharge. With an active connection, the charging time may increase several times and the full charge signal will not quite correspond to the truth (temperature and charge time limitation on the part of the microcircuit). Based on this, charging while the phone is completely turned off reduces processes destructive to the battery during charging by 4-8 times and shortens the charging time itself. Conclusion: put the body on charge - forget about it until it is fully charged. Relax yourself and let him rest =)
• The second reason- “spontaneous” charge consumption by the smart phone. You seem to be doing nothing, but the charge literally melts before your eyes, the body begins to lag, it responds to your actions with a long delay, and the drawing of the interface slows down. There is also strong heating in the lower part (in the area of ​​the SIM card/flash drive) - the smart device heats up more than usual (I personally noticed heating up to 49°C). This is a sign of a power-hungry application running, possibly in the background. Or an error occurred in the application, it hung and the Android is trying to fix everything on its own, while consuming more power than usual. Try to stop all currently running programs (for Samsung Galaxy S III - long pressing the HOME button brings up the task manager, with which you can end everything). If this does not help, then remove the body from charging, disconnect the battery for a couple of minutes, insert it back and connect it to the charger again. In the future, you need to figure out the culprit and disable it or configure it again.
• Third reason- frozen battery. Do not charge the battery after it has been exposed to negative temperatures, wait until it warms up to the surrounding (room) temperature and its energy properties return to their original values. When cooling, the processes inside the battery slow down. Therefore, when actively using the phone, a premature message about complete discharge is possible, although there is still a reserve. The effect is similar to high internal resistance, but is reversible. Due to slow chemical reaction The battery simply does not have time to supply the required amount of energy, resulting in a voltage drop. It is precisely because of the slowed down processes that charging a cooled battery will be ineffective. Moreover, it causes him some harm. You should wait until the battery reaches room temperature.

Hardware problems and solutions

• Poor contact. It is necessary to clean the USB socket in the body itself, the wire plug, and the adapter socket. If you don’t know how, don’t know how, don’t want to, are afraid - take your body to a service center or to any trustworthy phone repair office and for a nominal fee they will clean not only the USB socket, but also microphones, speakers, etc., everything they will blow it out and lubricate it (just kidding). It didn’t help - read on.
• The standard USB cable is faulty. There are two options: we crimp the microUSB plug or disassemble the microUSB plug and solder it or crimp the wires again. If you don’t know how, don’t know how, don’t want to, are afraid, a new USB cable will help you. How to choose a high-quality wire - only by scientific poking. We try different wires and compare the results in GalaxyChargingCurrent and charging time. Perhaps the original Nokia CA-101 cable will help you. We also remember that not all wires are equally useful - do not try to use wires longer than one meter. It didn’t help - read on.
• The adapter is faulty. At the moment there is only one option - we get a new one. Or, at your own risk, disassemble your adapter, repair it and share the result. Do not forget that the new adapter must meet two conditions: microUSB connector and output voltage 5V and 1000mA (=1A). 5V is mandatory, more is IMPOSSIBLE, less is possible, but no use. 1000mA(=1A) is the maximum that the body will take, if charging is 2000mA(=2A) - it’s not scary (the body will only take 1000mA(=1A)). The best option- monolithic charger (without the possibility of disconnecting the adapter and wire). Not only the GNUSMAS adapter may be suitable, but also NOKIA, HTC and others. It didn’t help - read on.
• The battery is faulty. Signs of an old/faulty/expired/dying battery are rapid discharge and swelling. Pull the Akum out of the body and look at it in profile, for example, at the edge with the connectors. If the upper and lower planes are noticeably convex, replace it with a new one. A sign of a faulty battery is spontaneous shutdowns of the smart device when the charge remaining is more than 5%. Before turning off, you may notice the screen flickering. Also, a working battery, charged to 100% (when the green diode lights up), cannot lose more than 1% during the boot process of the smart phone. The procedure for checking the battery for malfunction is to charge until fully charged (when the green diode lights up), disconnect from charging, turn off the smart and turn it on after a couple of minutes. If the battery has lost more than 1%, then the battery is faulty. 1% can be “lost” during the shutdown process (shutdown of applications) and during the startup process (a large number of applications in startup), in a normal situation, this procedure requires much less energy and, accordingly, after turning on the smart with a working battery, the readings will remain at 100 %. It didn’t help - read on.
• The phone is faulty. There are two possible answers: Krupsky and Delchev. But seriously, we repair it at a service center or at any trustworthy phone repair office. Or we buy a new phone.

and also (it helped some):

Deleting the /data/system/batterystats.bin fileAfter deleting the named file and rebooting, the charging problem is immediately solved. If the problem occurs again in the future, you will need to delete this file again.
Battery calibration.To solve all charging problems, you need to calibrate the battery.

Note: Charging time for all Li-ion batteries with an initial charging current of 1C (numerically equal to the nominal value of the battery capacity) it averages 3 hours. Full charge is achieved when the battery voltage is equal to the upper threshold and when the charging current is reduced to a level approximately equal to 3% of the initial value. The battery remains cold during charging. As can be seen from the graph, the charging process consists of two stages. In the first (a little over an hour), the voltage increases at an almost constant initial charge current of 1C until the upper voltage threshold is first reached. At this point, the battery is charged to approximately 70% of its capacity. At the beginning of the second stage, the voltage remains almost constant and the current decreases until it reaches the above 3%. After this, the charge stops completely.http://www.ixbt.com/mobile/review/lipol.shtml

Infinity, especially for Romashka-Club.