More often than not, the culprit is a missing driver for the .

The FT231X is a USB-to-UART converter chip that provides a simple and efficient way to add USB connectivity to devices. It is a highly integrated chip that includes a USB controller, a UART (Universal Asynchronous Receiver-Transmitter) controller, and a voltage regulator. The FT231X supports data transfer rates of up to 3 Mbps and has a configurable baud rate generator.

Download the Windows "Setup Executable" ZIP or the "No-installer" architecture ZIP from the FTDI table.

Open (Press Win + X -> select Device Manager).

Expand to see the companion "USB Serial Converter" mapping. Linux Verification Connect your device and open a terminal window. Execute the kernel log query: dmesg | grep FTDI