This is the most common error on Windows 10 and Windows 11. It usually happens because Windows automatically updated the driver to a version incompatible with older PL2303 chips inside legacy GEV189 cables.
: Facilitates the transfer of critical surveying data, including measurements and coordinates, from the instrument to the computer for analysis. gev189 driver
The GEV189 cable and driver are used across a wide range of Leica instruments, including: This is the most common error on Windows 10 and Windows 11