What to do if the computer does not see the phone via USB

Although mobile phones have long become quite ordinary communication devices, many people occasionally encounter different problems in the operation of mobile phones. One of them is that the computer system does not see the phone via USB. That is, when you connect the mobile to an available USB connector using a special cable, the drive letter does not appear in the operating system - the flash memory card (built-in or user-installed) does not appear. And if you can still work with an additional flash card using an external card reader, access to the built-in sections is not possible. As a result, the convenience of using the phone is significantly reduced. So, why does it happen that the computer does not see the USB port of the mobile phone?

Standards and features

Many people are used to the fact that all the key functions of any device must work out of the box, that is, do not require any special settings. In other words, from the phone it is expected that when you connect it to the computer, a dialogue is automatically displayed, suggesting that you make a selection of the operating mode on the touch screen (charging, modem, drive, etc.). However, in some models this does not happen, and the owner concludes that the computer does not see the phone via USB. In particular, users of some smartphones from Samsung encountered this. Therefore, before panicking because of the fact that the computer does not see the phone via USB, you need to carefully review all the settings of the smartphone. So, in the mentioned Samsung models before the connection, go to the "Settings", select "Network" and activate the item that includes the USB-drive mode.

Chinese wires

The next problem, because of which the computer does not see the phone via USB, is to use the owner of a poor-quality cord to connect the devices. Suspiciously cheap cords have long been known for the fact that the wires of the wires inside do not meet the requirements for resistance (cross-section, material), so sometimes when you connect the computer does not see the phone via USB. In addition, the soldering in the connectors and the material of the low-quality sliding contacts further reduce reliability. Therefore, it is recommended to use the wire that comes with the device, or purchase a quality one. In this case, trying to save on "trivia" leads to subsequent problems when using the phone.

Change port

Despite the abundance of USB connectors on motherboards and laptops, they are all connected to only a few controllers. These chips (or blocks), in particular, control the power of the ports. So, for the standard 2.0, the maximum port current is 500 mA. However, due to the fact that gradually the parameters of the electronic components begin to "float" (capacitors lose capacitance, there are stitch closures in the coils, etc.), problems may arise when connecting demanding devices to power. That is, if a modem (500 mA current) is connected to one USB connector, and the phone is switched on nearby, the controller can not cope with the load. The solution is simple: for problems with finding a connected mobile phone, switch it to another free port.

Software crashes

Sometimes the connection blocks the antivirus installed on the computer. It must be temporarily disabled. And, finally, many users claim that they were helped by a simple reboot of the phone and the computer - after that the drive was defined in the system.