The Leica GEV189 (Lemo to USB) cable is a critical data transfer tool for Leica total stations and controllers. On Windows 10, setting up the driver can sometimes be tricky due to how the OS handles older serial-to-USB converters. 1. Official Driver Download & Compatibility
The GEV189 cable typically uses FTDI (Future Technology Devices International) chipset technology. To ensure a stable connection on Windows 10, you should always aim for the latest certified versions.
Official Source: 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).
Alternative Source: Since it is often based on FTDI chips, you can also download the generic VCP (Virtual COM Port) drivers from FTDI if the specific Leica installer fails. 2. Installation Guide for Windows 10
Windows 10 often tries to install a generic driver that may not work with Leica software. Follow these manual steps to ensure the correct driver is used: usb download cable gev189 driver windows 10 upd
Extract Files: Download the driver ZIP file and extract the contents to a folder on your desktop.
Connect Hardware: Plug the GEV189 cable into your PC. Open Device Manager by right-clicking the Start button.
Identify the Device: Look for "FT232R USB UART" or "Unknown Device" under Other devices or Ports (COM & LPT). Update Driver Manually: Right-click the device and select Update driver. Choose "Browse my computer for driver software".
Point it to the folder you extracted earlier. Select the folder corresponding to Windows 7/8/10. The Leica GEV189 (Lemo to USB) cable is
Repeat if Necessary: After the first installation, a "USB Serial Port" might appear in the list. You may need to repeat the "Update Driver" process for this new entry to fully activate the COM port. 3. Troubleshooting "Device Not Recognized"
If the cable is still not working after an "upd" (update), try these fixes:
Check Windows Update: Sometimes Windows 10 blocks older drivers. Check Settings > Update & Security > Windows Update > View optional updates to see if a specific driver update is pending.
COM Port Conflict: Once installed, check which COM port number has been assigned (e.g., COM3) in Device Manager. You must match this number in your data exchange software (like Leica Geo Office or Infinity). Frequently Asked Questions 2
Disable Selective Suspend: In Windows Power Options, disable "USB selective suspend" to prevent the OS from cutting power to the cable during long data transfers. Product Overview How to Fix Windows Not Recognizing USB Device
The GEV189 cable typically contains a USB-to-UART bridge chip (commonly Prolific PL-2303, FTDI FT232, or Silicon Labs CP210x).
Historical Problem:
Step-by-step instructions to install the GEV189 USB download cable driver on Windows 10 using the UPD (Universal Print Driver?) — assuming you mean a USB download/serial adapter driver commonly labelled GEV189. If your device is different, the steps still apply with the device-specific driver.
Before diving into drivers, let’s quickly identify the cable. The GEV189 is a USB-to-Serial (TTL) converter cable. It looks like a standard USB cable on one end, but the other end has a 3.5mm or 4-pin connector (sometimes bare wires or a small PCB box). It is not a standard data transfer cable; it is a programming and firmware flashing cable.
Common uses:
Without the correct driver, Windows 10 will either show the device as “Unknown USB Device” or assign it a yellow exclamation mark in Device Manager.