The laptop does not recognize the asus phone. What to do if the computer does not see the phone via the USB port
If you want to transfer files from your phone to your computer, then the simplest and in a fast way will use a USB connection. But even with this connection method, a number of problems may arise, and they can be related to both the computer and the phone.
Possible problems when connecting the device
If you suddenly encounter difficulties connecting your device to your computer via a USB port, before trying other ways to solve the problem, regardless of the version of your device, try restarting both the computer itself and your phone. A reboot updates the USB connector settings and after it the device can be detected. If this does not help, you should consider other connection problems.
The phone does not charge and the computer does not recognize the connected device
In order to determine the causes of the problem, it is worth asking yourself: after what events did your phone stop being detected by the computer. This will help save a lot of time in figuring out the real cause of your problem.
For example, Windows XP does not work well with modern models phones. Therefore, if the problem surfaced after replacing the device, then this is exactly the problem. So that your phone is on Android based Connected normally to Windows XP, you need to install the Media Transfer Protocol.
Click the Download button to download Media Transfer Protocol If the installation does not help, then the problem is probably in the connectors of the device or computer. When using modern operating systems MTP installation doesn't make sense.
Video: reasons why the computer does not see the phone via USB
The phone is charging, but the computer does not recognize the connected device
If the device is connected and the device's battery is charging, but the computer does not detect it, you should try the following:
- connect the device through another USB port on your computer. If the other ports on the front panel give the same result, try using the ones on the back of your system unit;
- use another USB cable to check if the problem is a damaged cable;
- Check the cable connector on your device. Damage to the connector is a very common cause of problems with connecting a device;
- connect your phone via USB to another computer. If it doesn't work, the problem is in the phone. And if it does, then it’s worth checking the settings of your computer and, in particular, the USB connectors.
To check your computer settings:
The device connects, but the internal memory of the phone is not displayed
If the phone's memory is not displayed when connected, first of all you should make sure that the device is connected specifically as a data storage device.
On older versions Android firmware More connection options may be provided. The best of all connections for transferring files is USB Mass Storage. Choose it if you are offered this option.
Video: what to do if the device is connected, but the memory is not displayed
The device connects, but there are no certain files or photos
One of the reasons that files are not displayed on the connected phone may be problems with the memory card:
- try inserting the memory card into another phone and connecting it;
- make sure that the memory card slot is not dirty or visiblely damaged;
- remove and reinsert the memory card into the phone, then try connecting it again.
And also the reason may be some applications that have changed standard arrangement files on your phone. For example, the QuickPic application can lead to just such a problem. You need to find out where the photos are stored now and look for them in the appropriate directory. You can usually find out the new location of the files in the program itself that moved them.
Methods that can help with connection problems
Some universal solutions that are worth trying in any case of failure:
Some Android devices have own program to connect. Installing such a program will automatically install and necessary drivers. For example, Samsung PC Studio for Samsung phones.
Phone won't turn on or charge via USB
If the smartphone does not respond to the connection in any way, the solution would be to first restore the device’s operation, for example, by charging it from the network, and not via USB. If the smartphone does not turn on for another reason, then this separate problem, which can be helped by restoring the phone’s firmware. This can be done through the phone manufacturer's program, if your device model has such a program. For example, Kies Samsung program for Samsung phones or LG Mobile Support Tool for LG phones. For example last action recovery looks like this:
Of course, there can be many reasons for a device to malfunction, but they are rarely directly related to the reasons why the device does not connect via USB.
Video: fixing phone connection problem via USB
How to avoid problems in the future
To avoid problems in the future, just use protective case and do not use the phone with dirty hands - then the USB connector will not become clogged. Do not bend or twist the cable. This way, you will avoid problems in the future due to broken cable contacts.
Problems may arise when connecting the device to a computer via a USB connection. Solving any difficulties will not be difficult if you carefully follow the setup instructions.
There are cases that when you connect your phone to personal computer or laptop via USB cable, the first one does not recognize it. It becomes impossible to reload files from your phone to your computer and vice versa. It's a shame.
However, there are ways to recognize the cause of this type of incident and ways to correct it. If your phone is not just a mobile phone, but a gadget with an operating system, then reloading files via USB is impossible in the usual way, i.e. The phone is no longer like an ordinary flash drive - it is a computer itself. In order to transfer files from your phone, you will have to either reflash it or send files by mail.
I recently encountered a similar problem on my phone Samsung Galaxy: as long as the gadget has not been configured in computer mode, reading files and downloading them to the PC via USB connection was impossible, after “perestroika” it became impossible.
However, there are cases when the phone works in normal mode and acts as a flash drive, but the PC still “does not see” it. Why? What can you do in this case to try to fix the problem. Read below.
Music, movies, photos, applications - all this is simply necessary to modern man on his phone. Without communication with a PC, the mobile phone will sharply lose its functionality. Close interaction provided through a connection via a USB cable or via Bluetooth. Since file transfer via Bluetooth is quite slow, the USB connection is the most common.
But the user, having decided to use data transfer via a USB connection, suddenly cannot do this. Understanding his disappointment, let's give him some advice. To do this, consider two options: when the computer does not respond to the mobile connection at all, and also if the phone is detected as an unknown device. So, now in more detail.
How to detect a problem
When you connect to the computer, your phone is not detected in any way, nothing lights up on it, and there is no message on the monitor about connecting the device. This is a fairly common malfunction, with several causes. Let's try to list them and give recommendations for eliminating this problem. It is assumed that USB port, which you are connecting to is healthy. That is, other devices work normally through it.
1. If before the phone connects normally, and then suddenly doesn’t want to, then you should, first of all, suspect the quality of its connection to the computer. Try removing the connection cable from both the mobile and the USB input and then reconnecting them. It often happens that the contacts of the telephone connector simply become loose or dirty. This problem is inherent to a greater extent in the brand. Sony Ericsson, whose models stand out on the market mobile communications a completely illiterate and often faulty connector.
Tip: if possible, try to clean the telephone connector with an eraser, after which remove any remaining rubber from the surface of the contacts.
If cleaning does not help, then connect the phone through another USB cable. Take it from friends or relatives. Cable failure is not the most common cause of trouble, but this option also needs to be taken into account. If it helps, then you just need to buy a new accessory.
2. Restart your computer. Oddly enough, this method helps in most cases without any problems. additional measures. During the reboot process, system settings are reset and redefined USB ports. By the way, when the computer does not see the tablet, the best way to help is to restart the computer, as is the case with the phone.
3. Rebooting your PC didn't help? Then, to be on the safe side, restart your mobile phone. Unplug it, remove the battery for 10 minutes, and then put it back in. Turn on the device. Nothing happens? Go ahead.
4. Disconnect the cable from one USB and connect it to another USB input. This simple action very often helps, since the computer sometimes confuses the ports. To ensure that the OS sees the connection, you can use the following method. Go to Device Manager and find a list of used ports there. Typically this information includes all controllers USB bus. Open the list. In it you can see all the working ports of the computer. Find in this list the port to which the phone is connected in this moment(this can be seen in the “Nutrition” column). All other ports, except the one found, can be temporarily disabled. The computer will have no choice but to see your mobile.
There is, of course, the possibility of a breakdown of the phone itself or its connector. This is the most difficult option, in which, without contacting service center not enough. There they will be able to tell you exactly why the computer does not see the phone and how to fix it.
USB device not recognized
We go further, considering the second case, in which the computer identifies the phone as an unidentified device. Of course, work with unknown device The OS doesn't want to. And the question is not that Windows itself is imperfect, because the same problems often arise with Linux and other operating systems. Therefore, we must help the computer identify our mobile phone. Let us list the reasons for this phenomenon and possible actions user:
The problem may be with the phone itself. Connect the device to another computer. If the problem persists, then the reason lies within mobile device. You may need to enable one of the computer connection modes in the settings. For example, the “Data transfer” or “Storage” mode. Experiment with these modes;
Tip: Check your phone settings. In some mobile models, you must manually enable synchronization mode, which is disabled by default. Or disable the current blocking. If there is a blocking, open access must be established.
a) restart your PC and phone as described in section 1;
b) often the mobile phone is not recognized by the OS in case of lack of power supply. If you are connecting your phone to the front of your computer, try connecting it directly to motherboard, into the USB slot located on the back of the system unit;
Tip: In the Device Manager section, find the port you are using and open the Power Options tab. Check to see if the “Allow device to turn off to save power” checkbox is unchecked. If the checkbox is checked, remove it.
Sometimes crashes occur in the OS, as a result of which the “native” drivers of some devices are lost. Reinstalling drivers for the motherboard and connected devices helps solve the problem. If your phone came with a driver disk, use it to connect the device;
Tip: You can check whether your device needs drivers in Device Manager. If there is a yellow question mark before the device name, you can conclude that there are no drivers for this plug-in. How can you determine that an unidentified device is a mobile phone? Very simple. Disconnect it from the computer, and then question mark will disappear.
We also cannot exclude the possibility of the OS being infected by a virus that sets its own rules on the computer. Check all drives (including system) good antivirus with current databases.
If none of the above helped you, and there is still no connection between your mobile phone and your computer, then you can use a radical treatment. If the phone is detected perfectly on another PC, then the cause of the problem most likely lies in operating system. You'll have to reinstall the system. Then everything will surely work. Moreover, such errors in the system accumulate gradually, it is impossible not to notice. Thus, reinstalling the software will not only solve the issue of connecting the phone, but will also eliminate other possible errors.
Question from a user
Hello.
Tell me about one problem... I’m connecting the phone ( regular smartphone from Android) to the port Computer USB. There is connection sound, charging phone is coming, but I can’t go to it and copy files, the PC doesn’t see it! What can I do (I have already rearranged the drivers twice, downloaded the official ones from the manufacturer’s website)?
Good time!
The cause of the problem you described is most typical for incorrect settings Android (by the way, in the vast majority of cases this is true). For example, in the phone settings there is no checkbox indicating that the device should be connected as an MTP (media device with which you can exchange files).
Actually, in this article I will analyze both this reason and some of the others that are most often encountered in everyday work. So...
Reasons and solution for phone “invisibility”
1. If the phone is charging from the port and you hear a sound when connected
1) Settings for USB connection to a computer
The first thing you will notice is the notifications that appear on the phone screen immediately after it is connected to the USB port. By default, the phone is not always immediately visible in Windows - very often, if you do not specifically allow sharing files with the device, it will only charge (like the author of the question).
A notification in Android pops up immediately after connecting it to USB - you need to open this notification (title “Device connected”). See example below.
- The device can operate in MTP mode - i.e. an option that allows you to exchange files with it (which is what we need);
- in charging mode: i.e. except for charging the phone, other functions and settings will be unavailable;
- camera (PTP): allows you to transfer photos using special. software.
Actually, just check the box next to “Media device (MTP)” - ideally, you should immediately hear the sound of connecting a new drive in Windows, and in “My Computer” (Explorer) you will see your device. Mission Complete?!
2) The device is in modem mode
Go to settings at: "Wireless networks → More → Modem mode". In this section you need to disable all options for operating the device as a modem.
The fact is that when you turn on the mode, say USB modem, the device cannot simultaneously act as a modem (sharing the Internet on a PC) and exchange files with it, like a flash drive...
3) Try running USB debugging
Very often the USB debugging tool helps solve the problem. This function built into Android. True, there is one peculiarity: it can be “a little” hidden from view. Below I will consider options on how to launch it.
4) There is no driver for the USB root hub, for the phone
Another popular reason for a phone being “invisible” is the lack of drivers. Moreover, there may be no drivers for both the computer’s USB hub and the phone itself (even the newfangled Windows 10 is not able to recognize and automatically install drivers on some types of phones).
To view the driver status - open device Manager (to do this, you can use either the Win+Pause button combination (and then see the menu on the left) or the Windows control panel) .
In Device Manager, expand the USB Controllers tab and see if you have a USB hub. I recommend clicking on it right click mouse, select from the pop-up menu "Update driver" and follow the instructions of the master (Important! Try both automatic and manual update options! Often when manual version you can choose from several driver versions - try different ones) .
Remark!
In general, ideally, it would be better to launch a special one. utility for a comprehensive driver update and check your system with it. For example, Driver Booster allows you to do this in minutes:
Please note that if the driver is installed on your phone, then in the “Portable Devices” section you should see the name of your device (most often just its model).
2. If the phone is not only not visible, but also does not charge from the USB port (does not show signs of “life”)
If nothing happens when you connect your phone to the USB port, then it is obvious that there is no contact (no power is supplied from the USB port to the device). Most often, in this case, it is necessary to look for hardware reasons for this behavior: for example, the cable may be broken, the port may be broken micro USB phone, etc.
Below I will go through the most likely reasons...
1) Is the phone itself turned on?
Maybe this reason is too “banal”, but if you new phone or the battery is discharged to such a state that the device simply turns off - then by connecting it to a USB port, it will only charge! Until the battery reaches 5-10% charge, usually the device does not turn on and you will not be able to log into it.
In this case, all that remains is to wait for the device to be sufficiently charged...
2) Are the battery contacts sealed with tape...
This option applies to new phones and batteries. If your device is new, check its battery contacts. Its inoperability may be due not only to discharge, but also to the fact that the battery contacts may be sealed with tape. Manufacturers do this for safety reasons during transportation.
The battery contacts are sealed with tape
3) Is everything ok with the USB cable?
Next, pay attention to the cable with which you connect the device to the PC: is everything okay with it? Often, when from frequent use, the thin copper wires in the cable itself are damaged (that is, the cable may look completely intact externally, but be broken inside).
Therefore, try connecting another device using the same cable (you can use another PC/laptop). Goal: check the cable itself to see if it works...
4) Is the computer’s USB port operational?
The same applies to the computer’s USB port: try connecting another phone, flash drive, etc. to it. Does the computer see them and can exchange files?
Also note that system units, in addition to the front panel with USB ports (to which most users connect devices), also have USB on the back wall. Try connecting your phone to them.
Remark! It’s not uncommon to forget to connect the front panel with USB ports and audio jacks.
5) Test your phone by connecting it to another PC, laptop
It would be a good idea to check the phone itself with the USB cable by trying to connect it to another computer. Purpose: to verify the functionality of the device itself and its micro USB connector.
6) Is there enough power (is there a USB splitter installed)
Well, the last point that is worth paying attention to: are you using various USB splitters and extension cables? It is not uncommon to add a USB port to a keyboard, mouse, speakers, monitor, etc.
The fact is that when using various splitters, there may not be enough power for your phone (this often happens with external hard drives). If you want to connect many devices to one USB port, then use splitters and hubs that have additional source food (as in the photo below).
PS
Please note that if you connect your phone to USB only to transfer some files, photos from the device’s memory to HDD PC, I recommend trying it alternative ways. For example, files can be transferred over Wi-Fi using network drives, flash drives, etc.
Thanks in advance for any additions...
And that's all, good luck to everyone!
Connecting mobile phones to a personal computer with via USB doesn't always go smoothly. We will talk about the main causes of equipment conflicts and their elimination.
Lack of drivers for the mobile device. Usually, the package of smartphones and all-in-one PCs includes a charger, instructions, a warranty card and a disk with software - these are the drivers. Without installing this software, the computer simply does not recognize the connected device. If the disk is lost, do not worry, you can download drivers on the official websites of the manufacturers of your gadget. A similar problem occurs when the system files of the mobile software are damaged. In most cases, when connecting the device to a PC, a recognition error occurs. To resolve the problem, reinstall the driver package. Don't look software for smartphones on third-party sites to avoid failures. Download latest versions updates. Publishers provide the driver absolutely free. Mechanical damage to the USB cable. Unfortunately, USB cables are quite thin and often break. Such damage is invisible to the eye, but is recognized as follows:- Check for drivers and reinstall. If it doesn’t help, then it’s a hardware issue.
- Use your fingers to explore every inch of the wire.
- If you don’t find any creases, then ask a friend for a phone with the same USB input. Check if the computer recognizes his device.
- To finally make sure that the cord is faulty, borrow several of the same USB from friends and check with your phone. Did the computer see the mobile phone? So it's the cable. The solution is to buy a new USB.
We have sorted out the most common problems connecting laptops/PCs to phones via USB. If our advice did not help you, take the gadget to a service center. In the video, an experienced technician will tell you how to connect Android phones via USB. We wish you success!
Just a few years ago, connecting a mobile phone to a computer was a challenge: it required choosing required cable, install a support program from the mobile phone manufacturer, understand the complex menu hierarchy. Now all this is remembered as a bad dream, and even the greenest beginner can connect two devices. This became possible thanks to the development of this area in line with the requirements of computer USB standard. Theoretically, for the system to “see” internal media information in your smartphone, you just need to connect the plug to the corresponding connector. However, even this approach did not completely solve the problem when the computer does not see the Android phone, which users continue to periodically encounter. Fortunately, such difficulties are often easily overcome, in just a couple of minutes. Today we will look at the reasons why the computer does not see the phone via USB, and also give recommendations for eliminating them.
Communication options
The owner of a smartphone has two ways to organize communication between the mobile device and the computer: through wireless networks Bluetooth and Wi-Fi or using a regular USB cable. The first one is more modern, technologically advanced and flexible in configuration, but in terms of reliability it is inferior to the classic wired one. It is advisable to use a connection via radio waves only if it is impossible to connect with a cord.
Conductor quality
Externally, the above-mentioned wire is a cable about 3 mm thick, on one side of which there is a standard computer plug of the universal serial bus, and on the other side there is a corresponding micro-USB plug that is inserted into the smartphone connector. One of the reasons why the computer does not see the phone's memory is the use of a low-quality cable. Now the market is simply flooded with cheap products from little-known Chinese manufacturers, including USB cables. It is unknown whether such a product will work normally. The fact is that inside the cable there are several thin wires through which data is exchanged between connected devices. Copper conductors must be of a certain cross-section (thickness) and meet the requirements of the standard. Otherwise, you may well encounter problems such as internal breaks in the current-carrying wires or excessive resistance. And, importantly, it is impossible to determine quality by simple external inspection.
Thus, using cheap cords, you should not ask the question of why the computer does not see the phone. Our advice is simple: if possible, you should connect the devices using the cable that came with your mobile phone. The exception is smartphones of initially low quality, in which USB cord extremely bad and needs to be replaced.
"Wrong" cable
A standard USB cord contains four wires for transmitting power and exchanging signals. However, some devices make do with only two. A striking example is the widespread PowerBank. The USB cable that comes with them contains only power wires, and there are simply no signal wires. It is impossible to tell the difference externally. If when connecting your phone to the port charging in progress, and turn on internal storage If it fails, then the reason is the “wrong” cable.
Ohm's laws have not been repealed
It is known from a physics course that as the length of the conductor increases (assuming other characteristics remain constant), the resistance of the circuit increases proportionally. This leads to the fact that the voltage values at the source (USB port of the system unit) and the consumer (smartphone) differ. While the line length is short, this fact does not have any effect on the transmission of electrical signals. However, as it increases, significant losses begin to occur. And since the power of the universal bus controller is low (500 mA for standard 2.0, and 900 mA for version 3), resistance can have a huge impact on the data transfer process. Hence, trying to use extended patch cords results in the computer not seeing the phone via USB. Therefore, if the above problem occurs, we recommend replacing the cable with a shorter one.
Transition resistance
If the computer does not see USB phone, and the quality of the cable meets the requirements, then the problem may be wear on the contacts of the plugs and/or connectors. Taking a close look at the inside of the USB plug (both the micro and standard sides), you can see a comb of copper sliding contacts. They are curved in such a way as to provide reliable clamping to the bar contact pads inside the computer and phone connectors. But since no springs are used, over time the bending arc decreases and the contact is broken, provoking an increase in resistance at the point of contact (transition). If the computer does not see the phone’s USB, but when one of the plugs on the cord is touched, the operating system begins installing drivers, then the problem is in the contact. You can try to restore the bends with a needle, but it will be more reliable to simply replace the cable.
Selecting a port
Almost always, the owner of a smartphone connects his device to the computer via a connector on the front panel of the system unit. It's much more convenient than searching with reverse side The case has a free universal bus port, but in some cases it can lead to the computer not seeing the phone via USB. This failure This is explained by the fact that all communication connectors on the front panel are connected to the motherboard via a loop of conductors, which, like the cable, have their own resistance. We recommend if any similar problems try using the connectors on the back of the system unit for connection, and not on the front panel. Even to the point of removing the cord of some other device during the test, freeing the port (if there are no free ones). When using a laptop, this problem is not relevant.
Device internal program
All modern phones support the ability to replace the set of controls and application programs- firmware. In many cases, such an operation ultimately not only improves the performance of the smartphone, but also adds new or improved standard features. There are two types of firmware: from the manufacturer and custom, created by craftsmen. The latter, as a rule, enable the device to reveal its true potential, which is limited by developers for one reason or another. At the same time, a small mistake was made during the assembly of the software set - and the computer does not see the phone via USB. Moreover, even within the same model branch of smartphones, custom firmware can work fine for one user, but malfunction for another. The conclusion is simple: if problems started after flashing, then everything needs to be returned to a stable state.
Activate access
Although the developers popular system Android has done everything to simplify user interaction with it as much as possible; some still have questions about why the computer does not see the phone. A common problem is the banal ignorance of beginners of the required order further actions, which follow the connection between the smartphone cable and the system unit port. So, having connected the cord, you need to turn on the luminous touch screen mobile phone, swipe your finger from top to bottom, which will lead to the appearance of a control window - the so-called curtain. If the connection is made correctly and there are no hardware problems, then the screen should show “Connected in charging mode.” When you click on this line options for actions that the phone can perform open up. To provide access to the flash drive and internal memory, you must tick the “Enable storage device” checkbox.
If the computer does not see the Samsung phone
Samsung smartphone models use the storage device a little differently. In these models, after connecting the ports with a cable, you need to pull down the curtain and select “ USB connection"or disk mode. In some cases, you may need to first download the program to your computer Samsung Kies and install it. This application is completely free and posted on the company's website. The result of the installation is the registration in the operating system of the drivers necessary to support communication with mobile phone. New models work without this program, although it adds new features.