Why is my phone not charging via the USB port? Why can't it charge via USB cable?

Rapid loss of charge on communication equipment causes serious inconvenience to owners. If your mobile phone is not charging, you can always find the cause of the problem and correct the situation. And in cases where the mobile phone does not charge either from the charger or from the USB port, it is recommended to contact a workshop for repair or replacement of individual parts.

Mobile phone is not charging

When your phone doesn't charge, you have to deny yourself many of the usual entertainments: calling friends, watching videos, visiting your favorite sites. The estimated service life of modern batteries rarely exceeds two years, and the first symptom that foretells an early replacement of this part is the phone draining too quickly and problems with charging.

There are several possible faults. In some cases, the device does not charge from the charger, in others - from USB, in others - it shows the battery charging process on the screen, but in the end it turns out to be only 10-20% charged. Many owners immediately purchase a new battery, but there is no need to rush: in some cases, the battery may last a long time, and the cause of the malfunction lies in the connector, charger cord, or oxidation of the contacts.

Phone shows charging but won't charge

If, when connected to a power source, the phone shows charging, but is not charging, the first thing you need to do is check what applications are running at that moment. You may have forgotten to turn off your mobile Internet, Wi-Fi, or game. In this case, the device may consume more energy than it receives when charging, especially when using the USB port. When charging is in progress, but the phone does not charge, the cause may be a non-original charger. Cheap copies from China can cause serious harm to the battery, and the charging process turns into a lottery with unpredictable results. Therefore, it is much more profitable to purchase an original charger, with which you can recharge your mobile phone at any time. If you are using a high-quality device, then the failure may be due to a partial breakdown of the integrity of the cable. Internal damage may not be noticeable, so the only way to check is to try a different charger.

Phone won't charge via USB

Owners of laptops and computers often combine business with pleasure: they use a USB port to charge their phone. However, it may well happen that this method will only bring disappointment. The phone does not charge from USB in several cases:

the connector is too loose;
oxidation of contacts occurred;
the wire is broken;
the battery has become unusable;
The battery is not calibrated correctly.

If your phone won't charge via USB, try powering it using a wall outlet. For this purpose, you should use a charger recommended by the manufacturer, and if you don’t have one, an adapter. The process will go much faster.

Sometimes connecting to a different port can help, because the inputs of a laptop or computer can also be faulty. And sometimes the cause of the problem is inattention: if you do not fully insert either of the two ends of the cable, charging the phone will not be possible because contact is not ensured.

Laptop owners are also advised to check whether the laptop is connected to an electrical outlet. If the device is running on battery power, the system often blocks the use of USB ports. As long as you have at least one way to charge your phone's battery, there's no need to worry. However, it is important to constantly monitor the condition of the battery itself and not use it if the slightest signs of deformation appear.

Why it won't charge - the main reasons

Is it possible to independently determine why the battery on your phone is not charging? If you decide not to contact a repairman for now, you can rule out several potential causes of the malfunction yourself. To determine why the battery on your phone is not charging, carefully inspect the connector. If the owner has a habit of leaving the smartphone on charge all night, sometimes you can notice a discoloration in the connector area. This may indicate that it was regularly overheating, so it is possible that the contacts have oxidized or become deformed. In such cases, it is advised to wipe them very carefully with alcohol.

The next step is to inspect the battery. The appearance of swelling can be determined by placing the battery on a table and twisting it. A working battery fits tightly to the surface, so there will be no rotation. The faulty one will rotate easily. As soon as a defect in the shape of the battery occurs, it should be replaced immediately: it will still not be possible to fully charge the device. And with further use, the battery case may crack, the contents will fall onto the board, and then the only thing left to do is throw away the mobile phone.

Not charging - what to do

A battery charging problem can occur at any time. What to do if the phone is not charging? To start, try charging your device while it's turned off and make it one of your habits. If unsuccessful, experts recommend turning to friends with the same cell phone model and trying to use their charger or cord to connect to a computer. If this operation was successful, buy yourself a new charger and cord.

If your device does not charge even from someone else’s charger, then you will need the help of a qualified specialist. Our technicians have all the necessary spare parts and equipment to find the cause of the problem and repair the power circuit, connector or battery controller of a phone that is not charging.

It is worth considering that the phone battery cannot be repaired: this part will have to be replaced. It is worth giving preference to original spare parts, because they are ideally suited to the needs of a particular model.

If it happens to you that charging is going on, but your smartphone is not charging, read the article. It describes all the problems and ways to solve them.

The main advantage of any smartphone, like any other mobile device, is its long battery life. But you still need to recharge the gadget.

Previously, companies producing such devices equipped mobile devices with special original connectors.
The device could only be plugged into a power outlet using a proprietary “charger” provided by the manufacturer.
Now mobile devices are equipped with universal micro-USB connectors on Android devices and USB type C on new gadgets with the latest versions of Android and iOS OS.
This helped make using the device simple for the user; losing the cable is no longer a problem, since you can charge the device from a PC. But what should you do if you can’t add charge to your smartphone using this charging method? Look for the answer further in the text.

Why can't my Android phone and iPhone charge via USB from a computer, laptop, or from a wall charger?

If you connect your smartphone to charge from a computer or laptop, and the charging percentage does not increase, there may be a variety of reasons. Let's take a closer look. It is worth noting several main reasons why Android phones and iPhones do not charge via USB from a computer, laptop, or from a wall charger. Let's look at them in more detail:

System glitch in the device program.

If the OS is frozen, the controller does not give a command to transfer current to the battery.
Getting rid of this problem is simple: restart the device by holding down the On/Off or Home key for a few seconds.
Then turn on the device and connect it to your computer to charge.

The problem is in the firmware.

This problem often occurs on iPhones. If you recently updated the firmware, and suddenly the phone stopped charging, then do a rollback.
But to perform this action you need a backup, which you should have made earlier.
This recovery is done through iTunes. Just click in the program " Restore from copy».
If you don’t have a system in reserve, then reset it to the manufacturer’s settings. But keep in mind that in this case you will lose all photos, music and video files.

Charger fault

The charging unit can quickly break down, especially if it is Chinese and cheap.
Expensive smartphones need to be charged only with a branded unit. Using “left charging” can have the most unpleasant consequences: rapid wear of the battery, breakdown of the device, or even its unexpected explosion.
Try connecting the device to the computer using a different cable.

Lightning cable failure

Even if such a cable looks great on the outside, it may still be faulty.
Try using a different cable of the same type. If charging continues, it means the old cable is faulty and you need to buy a new one.

Lightning port glitch

This problem often occurs with iPhones.
This is not always a breakdown. The problem may be caused by dust and dirt. This will be visible if you look into the port.
If you can see that there is a lot of dust in the hole, then carefully remove the dirt from the port with a toothpick. The contacts will clear and begin to conduct current.

USB port is not working

The USB port on your PC or laptop may not function or may have low current or power.
Connect to a different port or charge your smartphone from a wall outlet or PowerBank.

Fault in parts (battery, cable, etc.)

If you have already followed all the tips, but the phone still does not charge, then some part of it is faulty.
It happens that water gets into the smartphone and it stops functioning normally.
In this case, you need to take the device to a specialist for service. They will find the problem and fix the problem.

Lack of charging current

You can find out this using a tester, USB-doctor, or using a special program on your phone.
If you cannot do this yourself, contact IT specialists for service.

Thin cable

Perhaps the wire is too thin and does not conduct the current required.
Try using other wires with the charging box instead of charging from the computer.

Low power in the motherboard circuit

It's unlikely, but such cases do happen. Basically, manufacturers adhere to the standard, but such a malfunction must also be taken into account. If the manufacturer still does not announce the function of charging devices via a USB port, then you should not count on powerful charging currents.
Contact a professional if you suspect this problem.

Bus feeds

If your computer is designed only to be turned on from peripherals, and not to power gadgets, there may not be enough power for charging.
You should review your BIOS settings. But it’s difficult to do this on your own. Contact the specialists.

If you doubt the quality of USB ports, then you should purchase a special tester for the charging cable. Its price is small (up to 250 rubles), but you can always find out what is causing the problem.

The phone shows that charging is in progress, but is not charging: what to do, how to charge?

When a mobile device does not charge, this is a disappointment for the user, especially if charging is in progress, but the battery remains empty. In this case, panic begins, because a modern person without a phone is like without hands. What to do and how to charge if the phone shows that charging is in progress, but is not charging? Here are the possible causes of this problem and ways to resolve the situation:

The charging unit does not function. Try charging the device through a different wire and unit. If it doesn't help, then that's not the problem.
Faulty phone system. If you are sure that the wire and charging unit are working properly, and the smartphone says that charging is in progress, but the battery is empty, then you should contact a specialist with the device. In this case, you need to flash the device or replace the input.
The battery has failed. The battery in the phone cannot be repaired, and if it malfunctions, you need to buy a new battery. If this part is built into the smartphone, then you will have to purchase a new device.
Open applications and other services. If you put the device on charge and did not close the applications, and also did not turn off the services, then charging will proceed slowly, since the functioning of open programs is powered. Disable all applications, programs, services, and especially WI-FI.

It often happens that the phone is charged for a long time, for example, all night, and after that the battery charge is scanty - 1-2%. In this case, the problem is a faulty battery or power controller. In the first case, you can replace the battery and continue to use the device, but in the second, you need to take the device to professionals for repair.

Video: iPhone4 shows charging, but does not charge. Repairing the battery cable

Many who own Apple equipment will agree that sometimes it can be very capricious and forces you to buy only original devices for it. But all this is not connected with the idea of extracting as much money from you as possible (although there is some truth in this too), but with ensuring the long service life of the device. Today I will look at the following problem: the iPhone does not charge in the car via USB. I’ll also tell you how to solve it and why it occurs in the first place.

iPhone won't charge in car using radio or cigarette lighter - solution

As I wrote above, Apple technology is capricious for a reason. If your Android phone can easily be charged from the cigarette lighter, but your iPhone flatly refuses to charge, then there may be several reasons:

Unstable voltage
Non-original device (cable or device that is installed in the cigarette lighter)
Radio tape recorder
USB connector

Now let's look at each problem in order. In the first two cases, the device is most often to blame because it is unable to maintain the normal current for charging. Usually these are “No name” manufacturers, so buying a branded cigarette lighter socket should solve the problem with charging your iPhone. Many car owners speak well of the Belkin charger. In rare cases, the problem may lie in the wiring of the machine itself, and here you need to contact a specialist. An ordinary multimeter, which costs from 200 rubles, will help you recognize this problem. You measure the voltage in the cigarette lighter itself, after which it will be clear whether the problem is in the wiring or the cigarette lighter of the car or in the device. which you bought.

The next problem why the iPhone does not charge in the car via USB may lie in the radio. You can find out its presence using the same multimeter. By measuring the voltage everything will fall into place. For normal operation of the device, 1 Ampere is needed, if the measuring device produces more, there is nothing to worry about. It’s another matter if you receive less than 1 ampere, since such voltage may not only simply not charge your iPhone, but also damage the battery or render it completely unusable.

And the last reason why the iPhone does not charge in the car via USB is the USB connector itself. Namely, if you have USB 2.0, then the iPad, for example, will charge, but the iPhone will not. The solution to this problem is very simple - buy a device with a USB 3.0 port. It’s worth saying that any consultant will assure you that all devices are currently compatible with USB 2.0, but this concerns data transfer. That is, USB 2.0 has a much lower speed than USB 3.0, but the current strength of USB 2.0 is 500 mA, while USB 3.0 is 950 mA, which is why the problem of charging an iPhone arises when using an old generation USB port .

Precautions when using Apple phones

In conclusion, I will say: in order for your iPhone to last a long time, it is advisable to use original chargers and USB cables. If you use memory from other manufacturers, try not to buy Chinese analogues and always look at the technical specifications. This will save you from re-purchasing, as well as your phone from being sent to a workshop. Using cheap analogues, you damage the battery, and there is always a risk of simply “burning” the board on your iPhone.

Let's imagine this unusual situation. The user purchases a tablet, unpacks it and decides to charge it from the computer. Using a USB cable, he connects the device to a computer or laptop and... Nothing happens. At all. What's the matter, what to do in such a situation?

Lack of power

Some tablets simply do not have enough power to charge from a USB port. As a rule, this applies to models with large screens, since they consume a lot of energy, but, according to reviews, this drawback also occurs on small tablets.

What to do? Accept it as a feature of the device, but you still can’t do anything about it. Charge your tablet from the mains.

By the way, if there is a lack of power, the tablet may show that it is charging from the USB port, but in reality it will not charge.

Reboot your tablet

If until now the tablet was charging from USB, but now it doesn’t want to, the problem may be a failure of the operating system. Which OS, computer or tablet? Just in case, we recommend that you first restart the tablet and, if this does not help, the computer.

By the way, try connecting the switched off tablet to the computer and see the effect, this often helps.

Use a different USB port

It is possible that the port you are using has some problems, as a result of which it does not charge the tablet. Try using a different USB port, fortunately, even on laptops there are at least 2-3 of them.

Check the USB cable

This is especially true if you have pinched a cable or have pets that love to chew on wires. To check the wire itself, try using it to charge the device from the mains. Not charging? Most likely, the problem is in the wire, although we must not forget about the USB connector on the tablet itself, which could have failed.

Actually, this problem is very rare. As soon as you connect your smartphone/phone to the USB port of your computer or laptop, it immediately begins to charge automatically. This is, so to speak, the norm. Even if you connect the device to the USB port of the TV, the smartphone will start charging in the same way. Yes, not as fast as from the network, but it will charge. Still, some users complain that when they plug in the device, it doesn't even start charging. What's the matter?

If we were talking about tablets, answering the question would be much easier: this is due to the fact that some tablet models do not initially support USB charging. The reason is simple: they waste more energy than they receive from the USB port of a computer or laptop. This applies to large tablets; with much smaller smartphones there are no such restrictions, and therefore we need to look for the reason.

Restarting the device

This is the first thing you should do when dealing with this type of problem. If there is a failure in the smartphone software, a reboot is what allows you to deal with it in most cases.

Reboot the gadget, reconnect it to the USB port and see if charging has started.

Cable inspection

It would seem that what could happen to a USB cable? It looks like new... Yes, most often the USB cable really looks like new or at least is in excellent condition, but this does not mean that it is functioning normally. It is enough just to squeeze it once, for example, with a chair leg, so that it stops working.

By the way, this is easy to check. Connect the USB cable with your phone to the wall charger and see if the device charges. If so, it's definitely not the cable.

By the way, even if the cable is working, but you have another one, try using it.

Cleaning the contacts of the microUSB connector

Pay attention to the microUSB port on the smartphone itself. Perhaps dust has accumulated in it and the contacts need to be cleaned - they are the problem.

In a good way, it is better to clean the contacts with an eraser, but it simply cannot fit into such a small hole, so you can use a toothpick or a match with cotton wool. And be extremely careful - one awkward movement and the microUSB port will be disabled. In this case, the phone will not charge at all.

Using other USB ports

Be sure to use a different USB port if available. Perhaps the current USB port is not receiving power, or there is not enough current, or it has completely failed.

Lack of charging current

If there is not enough current, the smartphone will not charge from the USB port. However, like other devices.

Why is there a lack of current? The reasons may be different: lack of energy in the USB port located on the front panel - a common problem, you need to use the port located on the rear wall of the system unit; low-power motherboard circuits; component settings, etc.

microUSB port does not work

In this case we are talking about the microUSB port of the smartphone. If it fails, then the device does not charge at all and there is only one way out - to change the part.

What to do if nothing helps?

First, try connecting your smartphone to another computer or laptop to a USB port. If it still does not charge, the problem is probably in the device itself, but only a specialist can find out the true reason.