Daily owners of smartphones and tablets based on Android are thousands of users. Some of them may arise certain problems when working with the device. For example, the user decided to connect a smartphone to a computer via a USB cable. It connects the device and ... and nothing happens. At the same time, the required drivers are installed, the device is accurately connected, but absolutely not reflected in the computer. Traditional question - what to do?

Ideally, the user must see approximately such a picture where the device is connected as a storage device:

In this case, it will be recognized and you will see the contents of your device on your computer. In addition, if you click on the connection mode, you will see an additional menu of connection methods:

On the computer, in turn, the autorun window will appear for the device:

What if the computer does not see the device?

Alas, the Unified Council does not exist, however, we will try to figure out the situation and consider possible solutions to the problem.

The very first thing you have to do is restart the device. The author of these lines periodically arises such a problem and it is solved it is the restart of the device. Most likely, some failure in the system occurs. If there is a faster firmware for your device, be sure to refresh it, it can help.

The next step is a careful inspection of the USB cable. It is possible that it is damaged. If possible, try connecting a device with another USB cable. If it works, it means that the problem is in it.

Connect the device to another USB port. Perhaps some of them do not work or work incorrectly.

If you see the connection mode on the device, click on this item and try to select another type of connection, for example, not a media device, as in our case, and a USB drive. This can help.

Do not turn off the device from the computer, try to disable and enable USB debugging several times in a row. If it works, you will hear the characteristic sound in the speakers, and the autorun window will appear on the computer screen. Try also easy to disable USB debugging.

Special attention should be paid to the drivers, because for some devices you will have to install them yourself. In some cases, you have to install drivers from very other devices - more details about the drivers for a particular device you can learn on thematic forums.

If nothing helps, try connecting the device to another computer. If another computer sees it, then the problem is in your computer and possibly in the drivers. If another computer did not see the device, it means that it is either in the cable or in the device itself or in the USB port. And be sure to update the firmware version, if there is such an opportunity.

If you have questions, you can specify them using comments.

If the computer does not see Android via USB, it will not be possible to drop photos, video or music, install applications not from Play Market, flash the device. And it is very bad, because the functionality of the phone does not fully disclose because of some kind of stupid error.

Someone may argue that you can flash the phone and without a USB connection, and there are Wi-Fi, messengers, cloud storage facilities, email. But I can't refuse to connect via USB, constantly carrying a cable with me and I think it is one of the most convenient ways to transfer data.

Checking cable and port

PRD WHAT WHERE TO WEN IN THE SETTING OF THE PEOPLE, install drivers and curse the day when you bought this android, check the cable and USB port. I was somehow very surprised that the computer stopped determining the smartphone, which had previously seen. It turned out that the cable attracted the cat, which is overgrown. From this situation, I made two outputs: the wires need to be removed into the box and inspect before connecting. The cat did no conclusions. If the wire does not detect the chances, processes, breaks and other mechanical damage, check the USB port. Try to connect to another connector or insert a different device into the same port - for example, a mouse.

If Windows XP is installed on the computer, then urgently look for the opportunity to go to at least the "seven". But first you can just install mTP protocolSo that XP learned to work with Android. The chip is that when the first version of Android appeared, Microsoft has already released Windows 7. Therefore, the MTP protocol in XP is not, and it has to be installed separately. You can download MTP.

If any other device is determined by any other device, and the phone categorically does not want to see, then it's time to move the focus on Android settings and connectivity. Yes, there is a chance of mechanical damage to the microUSB connector on the phone, but I have not encountered so far. If you have something broken, you will most likely notice.

Most often the inability to establish a connection between the computer and the phone is related to software errors. If none of the ways listed below cannot solve the problem, contact the service center - it seems, the smartphone really needs to be repaired.

Configure Android

I came across two situations. The first phone demanded not only the development of the rights of the developer and turn on the debugging via USB, but also installing the phone drivers to the computer. In the settings of the second smartphone, I generally did not find the parameters responsible for connecting via USB. They do not need: the phone is perfectly detected by the computer, after which it offers to choose the connection mode.

So, if you connected your smartphone, but nothing happened:

1. Open Android settings.
2. Go to section "About phone" (may be called "About Device").
3. Find assembly number (Models) and click on this item until the notification appears that you will soon become a developer. N. down to press 7-10 times.

After you become a developer, a new section will appear in the Android settings - "Developer Settings". Inside it you will find a switch "USB debugging"to be transferred to position "On".

Now try connecting the phone to the computer again. When connecting, a mode selection window should appear on the smartphone screen. By default, the old Android versions costs "only charging". If the window does not appear, pull it out of the curtain notifications.

To transmit files, you need to select media mode (MTP) or drive. Among the options there will be a PTP mode, but it is suitable for photos that can be moved to MTP with the same success.

After selecting the right mode in "Computer" on Windows, media device will appear, with the contents of which you can work. Depending on the features of phone models and Android versions, internal memory and SD card can be displayed together or as separate drives. But it does not matter, the main thing is to be displayed at all.

In Android settings, there are no other parameters responsible for connecting via USB, except debugging. However, there are some features. For example, on Nexus smartphones, you need to unlock the screen protected by a password or graphic key so that the computer gets access to memory content.

In addition, the USB connection cannot be installed if the modem mode is turned on on Android. To check its condition and disable if necessary:

1. Open Settings.
2. In chapter "Network and Connections" click "Additional settings" or "Yet".
3. Go to modem mode and disable WLAN Access Point. If it is disabled, you do not need to do anything else.

Some manufacturers offer users special programs for managing smartphones on a computer, but install a simple USB connection can be used without this software. The utilities from manufacturers are not needed for banal photo transfer, but to perform more complex tasks: updates by phone via computer, device firmware, resetting settings.

The reason that the computer does not see Android via USB, may be incorrectly installed or simply curved custom firmware. In addition, sometimes it helps reset the settings, but before you do it, do not forget to make a backup of the data, as they will be deleted. The problem may disappear even after the usual reboot of the smartphone - have this in mind.

Checking energy saving settings

W Indus tries to save energy so that the same laptops work from the battery longer. One of their savings factors is automatic shutdown of USB ports. Sometimes it leads to the fact that the external devices are not connected at all. To check these parameters and eliminate disadvantages:

I did not measure how it strongly affects the duration of the offline work. The ban on automatic shutdown of ports, but no noticeable difference. But there are problems with connecting external devices like phones on Android.

Installation of drivers

The first connection of any Windows device installs drivers on it. Often this process passes unnoticed and very quickly (as I have in case with the second phone), so you may not even know about the presence of a smartphone on a computer. But it is, but, it means that it should work correctly.

1. Connect the phone to the computer.
2. Open Device Manager. On Windows 10, the corresponding point is in the context menu called by clicking right-click on the "start". In earlier versions of Windows, the dispatcher can be found in Control panels in view mode "Icons".
3. Check all USB controllers. If an exclamation mark is worth one of them, this indicates the availability of problems with software.

To make sure that the telephone number is noted in the manager, turn off the USB cable. If the problem controller disappears, it means that you have found a source of problem. Smartphone without drivers can be displayed in other sections: for example, among other or portable devices.

So, you found that something strange is happening with the phone drivers. What to do next?

1. Connect the phone to be displayed in Device Manager.
2. Highlight it and remove it.
3. Update the equipment configuration so that the computer revealed the phone and start installing the drivers.

You can not delete the device, but only update the driver. Click on right-click, select the tab "Driver" and press "Update". Another option is first, and then reinstall, not the touch itself.

In the search window, select Automatic detection. If you downloaded the phone driver from the official site, you can click "Perform a search on this computer" And specify the path to the downloaded file with the software.

If you have a Chinese smartphone, then with him there may be another problem - the inability to find the appropriate driver on the Internet. Often they are placed on 4PDA forums, but if there is nothing, try installing a universal driver. It is called Universal ADB Driver and is designed to ensure the correct operation of Android Debug Bridge and PC synchronization utilities with Android devices. Universality is not always good, but the likelihood is great that in the case of a Chinese phone you can easily access the contents of memory.

Code Error Code 19

If the phone is connected, the computer shows the message about the impossibility of starting the device due to incomplete or damaged settings, then you need to check the system registry. But be careful: deleting not those records can lead to the fact that Windows will stop working.

After deleting the parameter, restart the computer and try connecting the phone again.

Alternative File Transfer Methods

If you cannot fix the problem with the USB connection via USB, and the files must be sent right now, use one of the alternative methods.

• Synchronize data via Google Drive. For the normal operation of Android, Google account is required, so you exactly have access to the cloud storage. You can send files and through other services - Dropbox, ONEDRIVE. I use Yandex.Disk.
• Transfer files via email, messengers or social networks. I often add small files in the "documents" of VKontakte, and then download them to the computer.
• Install the Airdroid application on the phone and get access to memory through the browser on your computer.

You can come up with other options. For example, create an FTP server on the phone or configure a remote connection via TeamViewer. So USB is not the only way out. But if the wired connection is not installed, it is still worth seeing what is the reason, and it is possible to eliminate it.

Updated: February 7, 2018 by the author: Sergey

Computers and mobile gadgets that belong to one person, family or team, is a single information environment. Ideally, it provides not only the availability of the entire array of data from each device, which is included in its composition, but also provides the ability to manage alone devices using others.

How to connect the phone to the computer to access information, control or individual functions of another device, for example, use it as a webcam, microphone, flash drive, monitor?

Methods of physical connection phone to PC

To establish physical connection between the phone and computer use 3 interfaces:

• USB. Connection via USB cable is the easiest and most obvious option. To access user files, stored on the smartphone, as a rule, do not need any settings: Usually it appears in Windows Explorer immediately after the connection. Simple push-button phones sometimes require special software and drivers.
• Bluetooth. For this type of communication, it is necessary for both devices to have Bluetooth adapters. On phones and laptops, they are by default, and for stationary PCs they have to be purchased separately. When connecting via Bluetooth, the PC user has access to folders and some functions of a mobile gadget.
• Wi-Fi. Normal network connection by air. Computer and smartphone can interact as equal members of one local network, as a server and client, as well as as an access point and client device.

How to connect the phone to a computer via Bluetooth and Wi-Fi

The connection of devices by means of a USB cable rarely has difficulty, so we will not stop on it. Consider ways of wireless connection.

Bluetooth

To install the connection, make sure that the Bluetooth adapters are enabled on the computer and the phone. On Windows 10, this option is turned on in the "Options" application - "Devices", on Android smartphones - in the quick access panel.

Press the "Adding Bluetooth or another device" shown below.

In the next window, select Connection Type - Bluetooth.

Click on the list of detected devices your phone. Check the digital code that appears below in this window and on the phone screen. If the code coincides, click "Connect".

To access the mobile gadget functions, rewind the Bluetooth window and other devices down to the "Related Settings" section and click "Devices and Printers".

Find the phone among the connected devices and right-click on it. The context menu shows the options for using Windows.

In my example, there are practically no of them, and that the computer can interact with the phone, for example, like a flash drive or with both a webcam, you have to install a third-party application, like MyPhoneExplorer.

Wi-Fi

The most common way to interact a PC and a mobile phone via Wi-Fi is the use of one of the devices as an Internet access point for another. As an access point, a smartphone connected to the World Wide Web through the 3G / 4G mobile operator networks is more often used.

Configuring such a connection is very simple:

• We go into wireless network management settings and turn on the modem mode.

• In the modem mode options, select the "Wi-Fi Access Point". In the next section, we define the settings of the access point. In most cases, it is enough to set a password to connect, the rest is optimally default.

After that, the computer can be connected to the access point.

A reverse way to connect the smartphone and PC is possible - when the access point starts on the computer. The function supports all system issues, starting with Windows 7 (except start and home base editorial board).

Creating a virtual access point in windows is also not difficult. In Windows 10, there is a "Mobile Hot Spot" function, which runs through the "Parameters" - "Network and Internet". It is enough to move the slider to the "Enabled" position - and the access point is running. Of course, that the phone gets access to the Internet through it, the computer must be connected to it itself.

In addition, permissions must be installed in the Internet connection properties on the PC, as shown in the screenshot below. From the List "Home Network" list, select a wireless connection.

There is a similar function on Mac OS X. There it is configured through "Shared Access" - "General Internet". For computers using Wi-Fi. The name and password of the access point are set in the Wi-Fi parameters.

Most modern smartphones and computers (equipped with wireless communication adapters) support data transfer technologies over Wi-Fi. In particular, Wi-Fi Direct and Miracast. Both standards use direct connection of devices to each other, that is, not through the router.

Wi-Fi Direct Wireless Transmission Technology is implemented on the absolute majority of smartphones of popular brands and models - Xiaomi Redmi 4 Pro, Xiaomi Redmi 4x, Samsung Galaxy, ZTE Blade, Asus, Lenovo, etc. The function is included in the Additional parameters of Wi networks -Fi:

After activating the Wi-Fi Direct, the phone starts searching for devices that support this feature and close to it. When a suitable device is found, it is enough to select it from the list.

To connect a Wi-Fi Direct on a computer, network detection and sharing files and printers must be enabled. The network profile must be private.

In addition, the multimedia streaming function should be active on the PC (the easiest way to open this window through the system search):

And enabled access to access to common multimedia files for the selected mobile device:

To display a photo or video on the phone screen or use it as a column to play music, it is enough to open the context menu of the file to the PC, click the item "Go to the device" and specify which one.

Miracast technology, in contrast to Wi-Fi Direct, allows not only multimedia to display another device, but any content. To connect the phone screen to a computer and vice versa, make the following settings:

• On the Android smartphone: Open the "Settings" application, go to the "Screen" section and select "Wireless Monitor". To see the phone screen on your computer, select a compatible PC from the list, which will be the signal receiver. If you want to display a picture from the computer screen to the phone, turn on the function "Used by others".

• On the computer: Open the notification center in the system tray and click the "Connect" tile. Next, select Mobile device from the list "Connect". If both devices support Miracast technology, the phone will connect to the computer monitor, more precisely, will perform the monitor function itself.

Phone and Computer Synchronization Programs

The capabilities of Wi-Fi Direct and Miracast technologies are far from endless and open access only to a small proportion of the functions of the attached device. To fully control the phone using the computer, with their help it is impossible. But no one does not, because there are special applications for such tasks.

Etc.

In addition, such tasks can use any supported remote access tools, like TeamViewer.

The Android Screencast program deserves separate attention. It is unique in that it does not require the installation of a client module to a mobile device, so it can be used, even if the screen does not work on the phone. The only condition is the included USB debug function.

Access to data on smartphones with a broken or non-working screen provides branded utilities of manufacturers that are listed above. The main thing is to have time to establish a utility before the incident happened and carry out at least one synchronization. If the touch does not work the sensor, most likely, some of the functions will be unavailable.

Is it possible to save data using these programs if the phone does not turn on? As a rule, no. The phone may not work for many reasons, and the operating system load failure is just one of them. To extract information from faulty devices, use programmers and a special service software that is not available in free access. In addition, special training is needed for working with such instruments. In short, if your phone does not turn on, you can try to reflash it, but to save the data easier and safer to contact your mobile service.

How to connect telephone To a computer via USB, if it is not connected as a removable media, but only charging? Very common malfunction for users who use android devices. Consider separately every possible cause of breakage and ways to solve it.

I can not connect a mobile to a laptop, how to cope with the problem? In fact, there are several reasons why this happens. First you need to make sure that you have connected all the necessary settings on your device. If after the connection smartphone From a PC, a message appeared on the taskbar that the device is identical and successfully installed by the driver, go to the phone settings.

At the same time, the battery should be charged on the cellular display. Turn on the removable media function in the settings and repeat the connection. In this case, the connection problem is missing, it is possible to adjust the drive have been changed due to the installation of the update or the operation of the anti-virus software. Connect the device as a computer for a computer. To do this, click on the appropriate key in the pop-up window or use the phone settings.

How to call from a computer to the phone?

Decision number 1. Incompatibility of ports

If earlier the connection worked without interruptions, and now the mobile does not connect, perhaps you not only did not turn on the drive mode in the smartphone settings. The problem may be in incompatibility of ports. Try connecting the device to another USB port on your PC. It is advisable to use USB version 2.0.

Also try to change the wire connections. In some cases, smartphones from Samsung. and lG Could continue charging even with minor cable breakdowns. Also among physical problems, you can mark a damaged phone socket. Because of this, the phone can be charged, but the window for configuring the drive will not appear.

To solve the problem, you need to change the wire or if you are confident in its performance, run on your computer to eliminate errors and problems.

• Click on "Device Setup". Next, the system utility will start to automatically detect troubleshooting. If any problems with the connected smartphone are detected, the application will independently fix them;

• Restart the device;
• Try to connect it in the drive mode again, the problem must disappear.

Decision number 2. Conflict versions of devices

I can not connect the smartphone to Windows XP, how to do? If you recently purchased a smartphone on android and cannot connect it to the computer on which Windows XP is installed, the cause of the problem is the conflict of the two devices. As a rule, incompatible with this operating system of the device from the company HTCHowever, there is one way to solve the problem.

Comparison of popular operating systems

Follow the instructions to solve the problem:

• From your computer, go to the official Microsoft site page by reference Microsoft.com/en-us/download/details.aspx?id\u003d19153 is a direct link to the utility page to install the MTP protocol. This protocol is necessary for organizing the work and further correct operation of the operating system and the user smartphone;
• Download and install the utility to your PC or laptop;

• After rebooting the computer, try connecting the device again as the drive. It must determine the computer without any problems. If this did not happen, you must reinstall the version of the OS android on the phone.

Decision number 3. Graphic key

An important point in the process of correctly connecting the smartphone to a computer is the presence of a graphical key on the smartphone or other additional unlocking methods. Because of them, the compound may occur incorrectly.

Forgot the graphic key? Find out how to unlock your smartphone

Important! Make sure that after you have connected the device to the PC, you entered a graphical key or password.

Also check whether the device notifies you that it was connected to the computer. Connection information is displayed on the taskbar, as shown in the figure below:

Try to connect the device not only in the drive mode, but also in modem mode. To do this, go to the settings, find the "Modem Mode" tab and activate the slider, as shown in the figure below:

After connecting this option, the phone must be recognized by the computer without problems.

Other data synchronization methods

If the cause of the failure in the connection is the physical component (for example, a wire broke), and the files between devices must be transferred urgently, take advantage of the following methods of transmission:

1. Configure the connection between the phone and the PC via any of the cloud storages. As a rule, on HTC and Samsung phones, ONE DRIVE software has already been reinstalled. Connect it and move the necessary files. Then go to your repository account on your computer and download the necessary documents;
2. Use the Airdroid or its analogs. With it, you can control the device through a computer browser. To do this, you will not need a wired connection. However, the rate of transmission of information in this case depends on the speed of the Internet compound;
3. Creating a FTP server (this option is suitable for advanced users). In the future, the created server can be used as a removable disk for the Windows operating system.

Thematic video:

If you have a notion on how to connect your phone to a PC, you can learn how to use additional features, including the transfer of files to the device itself, and from it, respectively. And all this without internet connection, and at high speed.

Connecting a phone to PC It is mostly necessary to transfer photos from a smartphone, as well as other files. Modern phones support several possibilities for connecting to PCs.

What are the connection options exist

Main ways:
1. Normal smartphone connection and PC using a cable via a USB port;
2. Wireless connection of the smartphone and PC via WiFi;
3. Wireless smartphone connection and PC via Bluetooth.

Select the connection method of course to you. Each individual method has its advantages. For example, if you need to transfer a large amount of data, then the first method is suitable: Connecting through the USB port.

Connecting Wireless is a quick connection, but the transfer of data and information is carried out slightly slower. They apply in cases where the PC has a "bluetooth" and "wi-fi" module, and the USB cord is not available at the moment, or the port does not work.

Using "WiFi"

"Wi-Fi" compound is very convenient, high-quality and fast. But the data is transmitted quite slowly, as well as for the implementation of these actions, will be needed a special router-wi-fi, or an adapter.
The fastest way to connect a smartphone to a PC via WiFi is to install the application.

There are such programs for a variety of OS, including android and OS. The principle of these programs is identical. If your smartphone on android, then will help you app from PlayMarket FTP server..

After installing it on the phone, it will need to run, and after writing the address that shows the program in the special line of the "Explorer". This makes it possible to be in the mobile data folder.
The user gets the ability to delete, change, add files on the phone and on a removable phone disk.

Using USB connection

When using it, the USB connection user acquires a huge number of features:
1. The information transfer rate is very high;
2. Use a smartphone as a webcam and communicate with it in Skype, Snapchat, and so on. This is an excellent opportunity to replace the webcam on PC.

Among the disadvantages: Binding the device to the PC. At this time, call or exit the device further than the cord allows the cord.
All you need is a suitable cord and port on a PC. Most often, optional drivers for connecting and detecting the phone are not required.

Via USB port is possible charging device.

When we connect your smartphone via a USB cable, a device is notified. After automatic installation utilities, synchronization will be automatically completed.

Using Bluetooth

In modern models of the laptop in the presence of "bluetooth" module, when the PC is extremely rare on the PC. Using "Bluetooth", the user appears the ability to synchronize one device with another.

When the smartphone is detected, it connects through Bluetooth. Select option "without using the key".

Probable problems

It happens that when trying to connect to a PC, the installation of drivers begins. The user remains only to expect the installation process. If automatically, the program cannot be installed, then it is hand-made.
Usually a compatible driver can be found on the official smartphone website.

There are also situations where you need to enable "debugging" in the phone settings.

Connecting to a computer failed to do?

There is an additional option for data transmission, which is used only in those situations when none of the provided methods is unavailable.

You will need:
- Removable flash card on a smartphone;
- Card-reader on a PC or laptop.

All that is required from the user is to rewrite data from the phone on a microSD card, remove it from the device and insert the PC to the Card-reader. Or do it all on the contrary, it all depends on your goals.