If the Device Manager shows a yellow exclamation mark, the driver did not install correctly.
Confirm the installation by checking under Ports (COM & LPT) to see the assigned COM port number (e.g., COM3). Configuring Your PLC Software jxmcu driver
Operates in harsh environments with temperature ratings between -20°C to +75°C. If the Device Manager shows a yellow exclamation
If you have an unknown USB device with “JXMCU” in its descriptor: jxmcu driver
(if known):