The Leica GEV189 (734700) USB download cable is fully compatible with Windows 10. While earlier versions of the driver were designed for Windows XP and 7, modern installations on Windows 10 typically use updated FTDI or Prolific chipset drivers to enable data transfer between Leica total stations and PCs. Download Sources for GEV189 Drivers
4. Troubleshooting Common Issues
"Code 10: Device Cannot Start"
This is extremely common with Prolific cables on Windows 10 and 11. It means the driver version is too new for the hardware version of the cable.
8) Uninstall driver
- Device Manager → right-click device → Uninstall device → check “Delete the driver software for this device” if fully removing → Uninstall.
- Reboot.
How to do it (once only):
The USB Download Cable GEV189 (often referred to as a programming or service cable) is a critical tool for technicians and hobbyists working with industrial equipment, two-way radios, GPS devices, and automotive ECUs. However, the most common frustration users face is the dreaded "USB device not recognized" error after updating to a newer version of Windows 10.
