In order to transfer information from the phone to a computer or vice versa (from computer to phone), it is necessary to connect these two devices together. Often there are situations when synchronization does not occur, and it is impossible to transfer data. In this article, we will explain why the computer does not see the phone.

- Damage to the USB wire through which the connection is made. Carefully inspect it and make sure its surface is safe and sound. You can also test another, similar wire, if it is, of course, there is. That is, use it to connect two devices. If the problem is resolved, and the computer sees the phone, then the idle wire is “guilty”, otherwise the reason must be sought in something else.
- Why does the computer not see the phone? The problem may be in the USB port you are connecting to. In order to check this, try moving the wire to a different connector. If the situation repeats, then there may be a malfunction in the USB drivers. To eliminate it, update the software that is responsible for their work. This can be done either using the disk on which the drivers are present, or automatically via the Internet (via Device Manager).
- Lack of software on the computer for the mobile device . Modern PCs and laptops, as a rule, contain the necessary drivers for connecting mobile devices. To resolve this problem, it is enough to choose the software for your phone model, which can be found on the official website of the manufacturer.
- Another reason why the computer does not see the phone may be undesired connection mode in the mobile itself. In many models, now when connecting to a PC, you need to set parameters. To do this, immediately after connecting, we look at the phone screen, and if the device offers us to select a mode, for example, a hard disk or a specialized program (options may vary depending on the model), we select the necessary one.
- Why does the computer not see the phone? So, if all the measures described above did not help you, and the connection is still unavailable, then check your system for viruses . Perhaps it is these “parasites" that prevent you from connecting the device, blocking it.
- There are also situations where the computer does not see the Samsung phone specifically through the Kies application. In this case, we can recommend that you carry out all the previously described actions and reinstall the program itself, perhaps the problem is in it.
- If the computer does not see the Nokia phone also through specialized software (Zune, Nokia PC Suite), then the user actions should be similar.
So, to summarize: first, diagnose the hardware of the PC and phone (check the integrity of the wire and make sure that the USB connector is working), then check the software (drivers), scan the system with an antivirus tool, reinstall the software for the mobile phone. If all the measures applied do not help, then it makes sense to contact technical support from the manufacturer of the phone and the operating system installed on your PC.