Look for an entry labeled or Prolific/FTDI USB-to-Serial Comm Port .
If automatic update fails, you must install the specific Prolific driver version that supports Windows 10. usb download cable gev189 driver windows 10 upd
Before beginning, . Installing the software before plugging in the hardware prevents Windows from assigning a generic, non-functional driver. Running the Installer Look for an entry labeled or Prolific/FTDI USB-to-Serial
Furthermore, once the driver is installed, the configuration is not always complete. In many industrial programming environments (such as legacy HMI configuration software), the software does not automatically detect the cable. The user must often navigate to the "Communication Settings" within the software and manually map the connection to a specific COM port assigned to the USB cable. This often requires checking the Device Manager to see which COM port number Windows assigned to the GEV189 during the driver installation and then matching that number in the application’s settings. Installing the software before plugging in the hardware
After your PC reboots, plug the GEV189 USB end into a built-in USB port (prefer USB 2.0 ports if available, as they offer higher stability for serial emulation). Connect the other end to your powered-on Leica instrument. Step 3: Verifying and Updating the Driver in Device Manager
Older serial bridge chips have poor USB 3.0 support. Use a USB 2.0 hub or port.