Why doesn't the computer see Android via USB. What to do if the computer does not see the flash drive? Reasons why the computer does not see the flash drive

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Active PC users often have a problem that the computer does not see a flash drive connected to the computer port. The situation is quite unpleasant... You wanted to copy data from a flash drive to your computer, connected the drive and nothing happens. What should I do? What to do about it?

Reasons why the computer does not see the flash drive

Lack of nutrition

The computer may not see the flash drive if it is connected to the front USB port system unit. There may be two reasons for this:

The front ports may not be connected to the power supply;

The front panel ports are receiving insufficient power.

Try connecting the flash device to the USB connector on the back of the computer.

If after this the computer does not see the flash drive, try connecting it to another computer, preferably not one, but several. If it doesn't help, read below.

Driver failure

The second very common problem is that the computer does not see the flash drive due to a driver failure in Windows. In such a situation, you can try the following:

Click on the “My Computer” icon (1) right click mouse, select “Properties” (2) in the context menu:

In the window that appears, select the “Hardware” tab (3) => “Device Manager” (4):

Near the “USB Controllers” item, click on the black plus sign (5). You will see a list of USB device drivers (6) that were connected to your computer:

Insert the flash drive into the computer and see which driver has changed; you need to remove it (right-click on it and select “Delete”).

Remove the flash drive from the computer and insert it back. The flash device driver will be updated.

If the above method did not help you, try reinstalling the chipset drivers. They include drivers for all controllers. The DriverPackSolution program will help you do this.

Presence of a virus on a flash drive

The third fairly common problem is that the computer does not see the flash drive due to the device being infected with one of the Autorunner viruses. When you try to open a flash device, a warning appears: “Access denied.” To log into the flash device you need to do the following:

Go to “My Computer”, in the address bar (7) enter the address of your flash drive, for example G:/

If you managed to get onto the flash drive, then make it visible hidden files. To do this, click “Tools” (8) in the title bar and select “Folder Options” (9) from the drop-down menu:

Click the “View” tab (10), scroll the slider (11) down and in the settings, uncheck the box next to the sub-item “Hide protected system files and folders" (12). Below, check the box “Show hidden files and folders” (13):

Paul - the job is done, now all that remains is to find and delete the malicious autorun.inf file (14):

Did you do it? Now scan the flash drive for viruses with your antivirus (note that the antivirus databases must be updated).

Problems with partitions

The computer also does not see the flash drive due to problems with the device partitions. Let's say you insert your flash device into your computer. It was successfully recognized, a characteristic sound sounded and a shortcut was displayed in the taskbar (15). But the system did not assign a partition letter to your device. This is easy to fix:

Go to the “Start” menu (16) => “Control Panel” (17):

In the window that opens, make sure that in your sidebar it says “Switch to category view” (18). If instead it says “Switch to classic view”, then click on this inscription and you will have what you need. Click on the “Administration” icon (19):

In the window that opens, select “Computer Management” (20):

In the window that appears, select “Disk Management” (21). There you will see all the information media present in the system: flash drives, hard drives, disk drives and their partitions, marked with letters. If you find your flash device there (you will see that there is no partition letter (22) next to the name of the flash drive):

This needs to be fixed: Right-click on your storage device. From context menu select “Change drive letter or drive path” (23):

A small window will pop up, in which click the “Change” button (24):

In the new window, select the partition letter from the drop-down list (25):

Mechanical problems

Well, the most recent case is perhaps the saddest. If all the above operations did not save your flash drive, then most likely your flash drive has mechanical damage.

It's no secret that Samsung Galaxy There is a slot for a microSD card to increase storage capacity. However, some users still additionally transfer images, music and videos to their computer or laptop. But what to do if the computer does not see the Samsung Galaxy via USB?

First, to recognize a smartphone like the Galaxy S, your computer needs all the necessary drivers. Usually, when a device is connected to a computer, it finds it immediately, but if necessary drivers are not installed, this may not happen.

Drivers are special programs, helping to establish interaction between the phone and the computer. Most often they can be downloaded from the manufacturer’s website. If your computer does not recognize your Galaxy S7, immediately head to the Samsung website and download drivers. Here is the link for Galaxy S7/Edge. Mac owners will have to install in order for your Mac to communicate with your phone.

There is an alternative: you can simply download and install the program on your computer, thus making file sharing easier. It comes with all the necessary drivers, so after installation you can rest assured that the computer will recognize your device and file sharing will no longer be a problem.

Those Windows users Those who have just installed drivers for Samsung may find themselves having to uninstall the device before it is detected. You need to follow these steps:

Hold the button Windows and press R to call the command "Run."
Type “ devmgmt. msc“ and press “ Enter“.
Select “ Other devices" or " Portable devices”.
If the list contains “ SAMSUNG_ Android" or " Unknown device” with a yellow icon (!), right-click and select “ Uninstall “.
Right-click on the window " device Manager" and select " Scan for hardware changes“.

Basically after installation necessary drivers or programs, everything should work. But if the problem is not that the device is not recognized by the computer, you need to look for another method.

Why doesn't the computer see Samsung Galaxy via USB?

If the computer does not see the Samsung Galaxy when connected using the included USB cable, then you will have to troubleshoot problems in the computer itself. If you know that other computers can see the phone, the issue may be USB port e.

If this is not the problem, then the problem may be with the cable or the port for charging the phone has become loose. Taking all this into account, here are a few steps to help fix this problem:

Step 1: Connect your phone to other USB ports on your computer

Simply connect your phone to your computer with a charging or data cable. If your phone remains invisible, try connecting it to a different port. Try one port at a time to see if this is the problem.

Step 2: Restart your computer if no USB ports work

There is also a possibility that your computer systemic problems, which prevent connected devices from being detected. While we don't know for sure whether this is a problem, it's worth restarting your computer and seeing if it works. If the problem remains after a reboot, it means that something is wrong not with the computer, but with the cable or phone.

Still, I advise you to try other devices, such as a flash drive that connects via a USB port. If the computer sees all devices except the phone, proceed to the next step.

Step 3: Make sure the USB cable is not damaged

By inspecting the cable, you can check for visible damage. If you don't see any, try charging your phone with it. Inside the cable there are wires responsible for both charging and data transfer.

By charging your phone with it, you can understand whether it works or not. If there is damage, the phone may not charge, especially if some wire has come loose.

Another way to check is to use a different cable. If the phone works with it, then the original cable is simply broken. If this is really the problem, then you need to replace old cable to the worker.

Step 4: Make sure to connect the device as "storage device"

This is very important since phones are mostly connected to a computer to recharge. If so, then the computer may not see it, since data transfer is temporarily unavailable. Go to notifications and see if there is a selection icon for USB. If yes, then consider the problem already solved.

All you need to do is click on it and select “Data storage device”. If this is the first connection, then installing the drivers will take some time. But if you don’t have such an icon, try this:

Disconnect USB from Samsung.
Turn off your phone.
Wait 20 seconds.
Turn it on.
Connect the cable again.
Check to see if the options icon appears.

If it's not there, go to the next step.

Step 5: Check the charger socket

At a minimum, you need two cables to figure out if there is a problem with it. If your computer still doesn't see Samsung, it's time to check the charger port.

The connection may not be able to be established, or some debris, fiber, or dust may have gotten into the connector. A stream of compressed air will help get rid of the latter, but if the connection is loosened, you need to move on.

If contacts charging socket is in order and there is no dirt, connect the cable and check if the contact has come loose. If the cable fits in properly and the connection is not interrupted when it moves, then everything is fine.

IN otherwise you will have to purchase a cable that fits perfectly under the port. If a new cable does not help, then your device has much more serious problems.

Step 3: Reset your phone if the problem persists after installing KIES or Smart Switch

The second step is aimed at solving the problem with the drivers, but if this does not help, you need to back up all files and information and reset the settings to a working state.

Turn off your Samsung Galaxy.
Press and hold the Home, Volume Up, and Power buttons
When Samsung Galaxy appears on the screen, release "Power" but continue to hold the remaining two.
When the Android logo appears, release all buttons and wait 30-60 seconds.
Using the Volume Down button, toggle between options and select 'wipe data / factory reset.'
Click "Power" to confirm.
Then select ‘Yes - delete all user data’ using Volume Down and confirm by pressing Power.
Wait until the process is completed. Then select ‘Reboot system now’ and click “Power”.
The phone will take a little longer to reboot than usual.

If after this the problem is not solved, the help of a specialist is required. I hope this instruction will help you in one way or another. If you feel that you need additional help, contact us.

Connecting via a USB port is one of the most popular methods of fast data transfer today. You can also simply charge the connected device using a USB connection. Such functions are in demand, so these days almost everyone has one, or even several, flash drives, a smartphone or tablet connected via a USB port, and various accessories ( smart watch, MP3 players, etc.), which also connect to the PC.

Naturally, with such a variety of devices, some errors are bound to occur. They are mainly divided into two categories: identification errors, which this article will be about, and formatting errors, the solution to which you can read about.

Recognition errors are also divided into two groups: an error in which the USB device is not recognized, and an error in which the computer does not respond to this after connecting the device.

“USB device is not recognized” - what to do in Windows 7, 8

Any computer can suddenly throw such an unpleasant surprise with any device: USB drives, smartphones, tablets, computer mice, keyboards, accessories, printers, scanners... With everything that can be somehow connected via USB, this problem can arise, but for almost any device this error can be solved in the same way.

The first thing to do when Windows does not recognize the device is to check that it is working properly. Connect the gadget to another PC or laptop. If the error remains on another device, then the whole problem is in the device itself (or the cable through which you connect it) and, most likely, nothing will help you other than going to the store for a new analogue.
Also try connecting the device to a different USB connector, temporarily disconnecting unnecessary equipment. If nothing works, then move on to the next paragraph.

Go to Device Manager. Press Win+R and enter the command devmgmt.msc. In the window that opens, try to find your device (it will be located either in “USB Controllers” or in “Unknown Devices”). If it happens to be in the “Unknown Devices” tab, right-click on it and update the drivers. If the gadget is included in the “Controllers”, then right-click on it again, go to “Properties” - “Driver” - “Update”. If the update button is not available, then go back to the manager and click “Delete”. After that, open the “Action” tab and select “Update hardware configuration”, after highlighting your USB device.

The above algorithm of actions usually works both when a regular flash drive is not recognized, and when when connecting the phone to a computer “ USB device not identified."

The computer does not see the USB flash drive

Firstly, yours personal computer most often it does not detect the flash drive due to the fact that it is faulty. To check this, insert the USB flash drive into another device. If it does not work and is not muted, then feel free to buy another flash card.
Secondly, check the connector for dirt. Naturally, if banal dirt gets into the flash drive connector, it will not work correctly.
Thirdly, try inserting the flash drive into another slot on the computer (usually there are several of them).
Next, try formatting your flash drive to match your computer’s file system. You can see what file system is on your PC by going to the properties of the local disk. Now you just need to specify what file system you need when formatting.

Phone is not detected via USB (Android)

A smartphone is usually connected to a PC in order to transfer data and files to it that are difficult to transfer in any other way. You connect your smartphone via a special cable, but nothing happens, and Windows does not react in any way to the new connected device and simply charges its battery.
But why doesn’t the computer see the phone via USB to Android, it only charges and nothing else? How to solve this?

1. If you bought new smartphone and try to connect it to old version operating system (Windows XP, for example), which is currently not supported, then you need to either upgrade to a newer OS, or download the Media Transfer Protocol program from the official Microsoft website, install it and restart the PC - everything should work.

2. If you have several USB ports on your computer, try connecting your smartphone through a different port.

3. Try changing the USB cable. Cable faults are one of the possible obstacles to a USB connection.

4. Check the connector of the smartphone itself. Remember if you dropped it into the water?

5. Connect your smartphone to any other device (PC, laptop). If the phone just as stubbornly refuses to work correctly, then the problem is either with it or with the USB cable. If everything works, then the whole problem is in the computer options - go to the next step.

6. Try plugging another device into the computer (flash drive, for example). If an error also occurs with other flash drives, then go to the “Control Panel” and select “Troubleshooting”. In it, click on “Device Settings”. Automatic setup will occur.

7. If the computer still does not see the smartphone, then the only thing left to do is update the drivers.

Note: Most new phones now default to charging rather than data. To check what type of USB connection is used, use the simple instructions from the screenshots below.

Problem connecting a USB card to a tablet computer

Some tablets now have the ability to connect a USB drive. You insert a regular flash drive through a special adapter, the tablet does not react at all. So why doesn’t the tablet see? USB flash drive through an adapter?

The main reason for this error is different standard file systems. Then you need to format the flash drive in FAT32 (this is the system modern tablets are designed for) via a computer.
If this does not help, then you need to root the device and download from Google Play app StickMount, through which you can install the USB drive virtually after inserting it into the tablet.
If none of the above methods help, then think about repairing your tablet.

Hello everyone, today I’ll tell you how to solve the problem that the computer does not see an Android phone via USB. If you are faced with the fact that the phone does not connect via USB, that is, the computer does not see it, in this guide you will find all the options known to the author for the reasons for what is happening, as well as ways to fix the problem.

The steps below apply to Android phones, as the most common among us. However, they can be used to the same extent for Android tablets, and some points can help you understand devices on other OSes.

Windows doesn't see android phone

I think it’s worth starting by answering the question: did the computer always not see your phone or did everything work fine before? The phone stopped connecting after actions with it, with the computer, or without any actions at all - the answers to these questions will help you quickly figure out what exactly is the matter.

First of all, I would like to note that if you recently purchased a new Android device and it is not seen by a computer running Windows XP (at the same time old phone on Android can easily be connected as a USB flash drive), then you should either update the operating system to one of the currently supported ones, or install the MTP (Media Transfer Protocol) protocol for Windows XP. You can download MTP for XP from the official Microsoft website here:

http://www.microsoft.com/en-US/download/details.aspx?id=19153. If suddenly for some reason this fix is not available, this happens with MS, then you can merge it from the Yandex disk https://yadi.sk/d/u9K_mOUIuXheG

After installation and restarting the computer, your phone or tablet should be detected.

Now let's move on to the situation where the phone is not visible via USB in Windows 7, 8.1 and Windows 10. I will describe the steps for Android 5, but they are similar for Android 4.4.

Note: For devices that are locked graphic key or password, you need to unlock the phone or tablet connected to the computer in order to see the files and folders on it.

Make sure that the phone itself, when connected via USB, reports that it is connected, and not just for charging. You can see this by the USB icon in the notification area, or by opening the notification area in Android, where it should be written what device the phone is connected to.

Typically this is a storage device, but may be a Camera (PTP) or a USB modem. In the latter case, you will not see your phone in Explorer and you should click on the notification about using a USB modem and turn it off (you can also do this in Settings - Wireless networks- More).

If your phone is connected as a camera, then by clicking on the corresponding notification, you can enable MTP mode for file transfer.

On old Android versions, available more modes connection via USB and USB Mass Storage will be optimal for most use cases. You can also switch to this mode by clicking on the USB connection message in the notification area.

Connect your phone via a cable to your computer, go to settings -> device memory, there is a button (three dots) in the upper right corner. Click on it. When connected, it becomes active and it says " USB connection to the computer." Click. And in a new window you will see "Connect as....media device, camera, etc.

This is how to easily solve the problem that the computer does not see the Android phone via USB.

If such a situation arises, when the computer is connected via a USB connection, the ability to move files from one device to another is lost.

The same problem also makes it impossible to flash the smartphone to get new features or restore functionality.

In order to solve the problem and restore the ability to connect your phone and PC, you first need to determine the cause of the problem.

And this can be done by first checking the functionality of the cable with which the connection is made, then the drivers, and, finally, the .

Priority user actions

Sometimes the problem can be solved within a few seconds. So, for example, it may disappear if the mobile gadget is blocked - both before and after connection.

Basically, when connecting, the computer automatically detects a new device, and on a smartphone with (or other operating system) a corresponding message appears.

It is possible that the problem will be resolved if you connect to an unlocked phone.

In addition, in most cases, they automatically connect to the computer in charging mode.

This can be determined by the USB connection symbol at the top of the phone screen.

By clicking on it and selecting another mode (for example, "Media device"), a connection can be established to exchange data.

Rice. 2. Modes for connecting a smartphone to a computer.

The second reason, which can be eliminated in just a few seconds and a couple of taps on the smartphone screen, is.

Naturally, you cannot enable such a function by accident.

If the phone was used as a modem, to connect it to a PC and exchange files, the mode must be turned off.

And finally, the third option to solve the problem is to enable the debugging mode, which is required to connect to a computer on some phone models.

USB problems

The next step is to check the functionality of the cable that connects the smartphone to the computer. The problem may be that this part is worn out.

Situations often arise when the USB cable continues to charge the phone, but is no longer able to provide a connection.

The same can be observed when connecting using not a proprietary cable, but an inexpensive analogue.

You can determine whether the cord is the cause or whether the problem should be looked elsewhere by performing the following types of tests:

connect another device to the same computer port - for example, a mouse. If they work, then the problem is not with the connector. But if there is no response from new devices, the user will have to resolve the issue with a faulty USB port. And connect to other slots;
connect the same smartphone and cord to a second computer or. The absence of connection problems confirms the hypothesis of a malfunction on the PC side. If the problem recurs, the cause is the cord or the phone;
use another cord (if available), the performance of which is not in doubt. If there is no connection, the old cord is most likely working.

Rice. 3. Damaged USB cable– microUSB.

In some cases, cleaning the cable from dirt and dust (on each side) that can get into the connector helps solve the problem with the cable. Because of this, the cord can only charge the phone.

The cleaned cable connector is reconnected to the computer.

If nothing happens, the wire is most likely damaged.

After checking it again for a different connection option - for example, from a PC or another smartphone, or another PC - and making sure that it is not working, you should throw away the cable.

And the problem with the USB connector can be solved either by replacing it (more expensive and longer, but more convenient), or by using other connectors.

Important: You can also clean the connector on your phone. However, this should be done even more carefully and carefully than when working with a cord or computer. And in some cases, such cleaning is best done at a service center.

Driver problems

A common reason for the lack of connection between a computer and a smartphone is incorrect operation drivers or their complete absence.

This often happens if you connect to a PC that has not previously been connected to the same operating system.

And if automatic connection and does not happen, the user will have to configure the connection manually:

Connect your phone to your computer;
After a message appears about the impossibility of installing the driver, go to the device manager (“Start”, properties of the item “Computer”);
Find in the list that opens unknown device(usually indicated by a yellow triangle);
Open the properties of the smartphone and try.

Rice. 4. Fixing the problem with missing drivers.

If the driver is installed, but the phone still does not connect, you should move on to other steps to solve the problem.

But, if the installation still does not happen - even manually - you will have to use the Internet and find suitable control programs by the name of the phone.

As a rule, the manufacturer stores such drivers for new models in open access. The old ones can be found there - or on thematic forums.

Rice. 5. Download the driver to connect the GSmart smartphone.

Outdated operating system

The cause can be identified almost immediately if the user's computer has an outdated operating system.

All attempts to establish a connection with a device running Windows platforms 2000 or 98 will not lead to a positive result.

And for Windows XP you will have to download from the official Microsoft resource and install a special MTP protocol on your computer.

Rice. 6. Download the MTP protocol.

Old phone

Despite the fact that most modern smartphones run on iOS or platforms, equipment with other OSes also remains functional.

Advice: You should not use an antivirus program that is already installed on your PC and has proven to be ineffective. A good option would be “one-time” utilities like Dr. Web. Curelt or Kaspersky Virus Removal Tool.

Rice. 9. Useful and free utility Kaspersky Virus Removal Tool.

Checking your system for viruses won't hurt, even if the reason for the lack of connection was not malicious code.

And while antivirus program scans your computer, you can perform the same check on your phone (for example, using free antiviruses from ).

Although the likelihood that the problem with the lack of communication is very small, these programs do other things.

Contacting service

The last option that the user is forced to turn to if there is no result from previous actions is contacting the service center.

If the smartphone is under warranty, you should contact the official service, in other cases - any service.

Based on the diagnostic results, the center staff will draw conclusions and make recommendations. various options solutions.

It is possible that you will have to bring a computer, not a smartphone, to the service. Especially in cases where the phone easily connects to other PCs.

However, most often it is enough to simply reinstall the operating system.

And, if the reason for the lack of communication is damage to one USB input, and the others are already occupied (by the keyboard, mouse, etc.), it is worth purchasing a splitter and again increasing the number of ports to replace the broken one.

At the same time, both internal and external device This type is easy to install yourself.

Alternative ways to solve the problem

Having identified the problem and tried to fix it on their own or by contacting the service, the user can spend a few seconds, or may even lose a lot of time, fixing the problem.

And, if you need to connect your phone to your computer immediately, you should use one of alternative ways transferring data from one device to another:

synchronize data using cloud storage types;

Rice. 10. Cloud storage Google Drive, with which you can exchange data.

install and use an application such as AirDroid, which is intuitive to use, to transfer files;
creation on a smartphone to which you can connect a PC;
connection with using Wi-Fi(option suitable for laptop or desktop computer With ).

However, for an urgent solution to the problem, all these options may not be suitable, since they require an inexperienced user to spend quite a lot of time.

Sometimes it is much easier (although more dangerous if the files contain confidential information) use public repositories that don’t even require registration.