SAMSUNG Mobile USB Serial Port (COM3) Driver

The SAMSUNG Mobile USB Serial Port (COM3) driver lets Windows communicate with the serial interface exposed by a compatible Samsung mobile device over USB. It is useful when your phone’s serial connection is missing, appears as an unknown device, or cannot be detected by software that requires a COM port.

Although listed in the Network category, this driver supports a USB serial interface rather than providing Wi-Fi or Ethernet connectivity. COM3 is the port assigned by Windows; your computer may assign a different number.

Key Features

• USB serial communication: Enables compatible applications to exchange data with a supported Samsung device through its USB serial interface.
• Device recognition: Helps Windows identify the mobile serial port correctly in Device Manager when the appropriate driver is installed.
• COM-port access: Makes the serial interface available to compatible diagnostic, service, or connection software, depending on the device and its configuration.
• Legacy Windows support: Intended for supported configurations running Windows 10, 8.1, 7, Vista, or XP. Check the individual package for device compatibility and 32-bit or 64-bit requirements.

How to Install SAMSUNG Mobile USB Serial Port (COM3) Driver

1. Check your system. Confirm your Windows version and system architecture, then verify that the driver package supports your Samsung model. For Windows 10/11 systems, note that Windows 11 compatibility is not confirmed by the supported OS list here.
2. Choose a compatible package. Before starting your SAMSUNG Mobile USB Serial Port (COM3) driver download for Windows, review the package details. Select the latest version that explicitly supports your device and operating system, and use a trusted source offering a free download.
3. Install the driver. Extract the downloaded archive if necessary and run the supplied installer. If the package contains only driver files, open Device Manager, right-click the affected device, select Update driver, and browse to the extracted folder.
4. Reconnect the device. Follow any installer prompts, then connect your Samsung device using a data-capable USB cable. Restart Windows if requested.
5. Verify detection. Check Ports (COM & LPT) in Device Manager for the Samsung serial interface without a warning icon. If it uses a port other than COM3, select that port in your application.

Keep the driver updated when a compatible release addresses connection problems or supports changes to your system. Before you update, verify compatibility rather than assuming the newest package supports every older Samsung device or Windows edition.