The FTDI FT231X is a highly popular USB-to-Serial UART interface chip used widely in electronics, Arduino development, industrial automation, and robotics. If your computer fails to recognize your hardware or displays a "Device driver software was not successfully installed" error, you need the official FTDI drivers.
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Modern macOS versions include native support for many FTDI chips via Apple's built-in AppleUSBFTDI driver. However, if your hardware requires the official FTDI driver or you are running an older OS version: Download the VCP driver .dmg file for macOS. Double-click the .dmg file to mount it. The FTDI FT231X is a highly popular USB-to-Serial
Open a serial terminal program (such as PuTTY, Tera Term, or Serial Studio), select the identified COM port, set the correct baud rate matching your microcontroller configuration, and initiate a connection. If the terminal opens without an error configuration pop-up, your driver is running perfectly. This link or copies made by others cannot be deleted
Look for a device with a yellow exclamation mark (usually labeled or Unknown Device under "Other devices"). Right-click the device and select Update driver . Choose Browse my computer for drivers .
Open Device Manager and expand the Ports (COM & LPT) section to verify which COM port number has been assigned (e.g., COM3, COM4). If it is listed under "Universal Serial Bus controllers" instead, your driver configuration is set to D2XX direct mode instead of VCP. You can toggle this behavior in the device's properties tab under advanced settings. 3. Counterfeit / Non-Genuine FTDI Chips