Although mobile phones have long become quite common communication devices, many people periodically face various problems when using mobile phones. One of them is that the computer system does not see the phone via USB.
That is, when the mobile
phone is connected to a free
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) is not mounted. And if you can still work with an additional flash card using an external card reader, then access to the built-in sections is impossible. As a result, the convenience of using the phone is greatly reduced. So, why does it happen that the computer does not see the USB port of the cell phone?
Standards and Features
Many people are used to the fact that all the key functions of any device should work out of the box, that is, not require any special settings. In other words, it is expected from the phone that when it is connected to the computer, a dialogue is automatically issued, prompting you to select 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 faced this.
Therefore, before panicking due to the fact that the computer does not see the phone via USB, you must carefully review all the settings items on your smartphone. So, in the mentioned Samsung models, before connecting, go to "Settings", select "Network" and activate the item that includes the USB drive mode.
Chinese wires
The next problem, due to which the computer does not see the phone via USB, is that the owner uses a poor-quality cord to connect devices. Suspiciously cheap cords have long been known for the fact that the core wires inside do not meet the requirements for resistance (cross-section, material), so sometimes when connected, the computer does not see the phone via USB. In addition, soldering in the connectors and the material of the sliding contacts of poor quality further reduce reliability. Therefore, it is recommended to use the wire that comes with the device, or purchase high-quality. In this case, an attempt to save on “trifles” leads to subsequent problems in the operation of the phone.
Change port
Despite the abundance of USB connectors on motherboards and laptops, they are all connected to just a few controllers. These chips (or blocks), in particular, control port power. So, for 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 their capacitance, coil short circuits occur in coils, etc.), problems may arise when connecting power-hungry devices. That is, if a modem is connected to one USB connector (500 mA current), and a phone is switched on in a nearby one, then the controller may not cope with the load. The solution is simple: in case of problems with the detection of a connected mobile phone, you should switch it to another free port.
Software crashes
Sometimes the connection is blocked by the antivirus installed on the computer. It needs to be temporarily disabled. And finally, many users claim that they were helped by a simple reboot of the phone and computer - after that the drive was detected in the system.