Because Windows 10 pushes automatic updates, it occasionally overwrites working Leica drivers with generic ones, resulting in system conflicts. Fixing the "Yellow Triangle / Code 10" Error
The software driver tells Windows 10 to create a Virtual COM Port (Communication Port). Software programs like Leica Geo Office (LGO), Leica Infinity, or third-party data collectors use this Virtual COM port to talk to the instrument. Step 1: Download the Correct GEV189 Driver
To update the driver for the USB Download Cable GEV189 on Windows 10: usb download cable gev189 driver windows 10 upd
Several Chinese software portals host the GEV189 driver:
Once successfully installed, your GEV189 cable will work reliably for firmware updates, satellite receiver programming, and radio flashing on Windows 10—even after future updates if you apply the blocking measures above. Because Windows 10 pushes automatic updates, it occasionally
Once the driver is installed:
Struggling with the USB Download Cable GEV189 on Windows 10? This complete guide covers driver installation, updates, troubleshooting, and fixes for common errors. Step 1: Download the Correct GEV189 Driver To
The most reliable place to get the driver is through the Leica myWorld portal or specialized survey equipment retailers like Sunbelt Sales , which hosts ZIP files for v1.70 (GEV189/GEV195/GEV218).
Before diving into the technicalities, it is helpful to understand what this cable is and why it requires specific software to function.
Open . Right-click the malfunctioning GEV189 device > Uninstall device . Check “Delete driver software for this device”. Then unplug the cable.
The cable serves a critical purpose: many surveying instruments require a serial (RS232) connection for data transfer, but modern computers no longer come with 9-pin COM ports. The GEV189 bridges this gap by creating a virtual COM port over USB, effectively turning a USB connection into a serial link that software like Leica FlexOffice can recognise and use.