The WLN KD-C1 typically uses a Prolific PL2303 USB-to-serial chip (older version, often PL2303 HX or similar).
For Windows 10/11, you usually need to install the Prolific PL2303 driver, but note:
Important Note on Driver Versions:
Older Prolific drivers (before v3.3.x) are incompatible with newer Windows 10/11 systems due to Microsoft’s driver signing requirements. Always download the latest driver from the Prolific official website or a trusted source.
The WLN KD-C1 USB driver is a low-level software program that allows your Windows operating system (or occasionally macOS/Linux) to communicate with the programming cable attached to your radio.
Unlike modern plug-and-play devices, the KD-C1 uses a generic, often unbranded, USB-to-serial converter chip inside the programming cable. The most common chips found in these cables are the Prolific PL2303 or the Silicon Labs CP2102.
Why do you need the driver?
Without the correct driver, your PC sees the programming cable as an "Unknown USB Device." The driver translates the USB signal into a virtual COM (Serial) Port, which the KD-C1 programming software (like KD-C1_CPS.exe) can understand. No driver = No communication = No programming. wln kd-c1 usb driver
If you have recently purchased a WLN KD-C1 (often found as part of an SDR kit, a USB relay board, or a specialized radio accessory), you may have run into a common issue: you plugged it in, and your computer didn't recognize it.
Don't worry—this is standard for devices utilizing specific USB-to-Serial chips. To get your device up and running, you need the correct WLN KD-C1 USB driver.
In this guide, we will walk you through identifying the chip inside your device, downloading the right driver, and installing it on Windows or Linux.
Once the driver is installed, you need software to program frequencies, DMR IDs, and contacts. The WLN KD-C1 typically uses a Prolific PL2303
The official software is typically called: "WLN KD-C1 DMR Programming Software" (v1.02 or higher).
Alternative software options:
Do NOT use the mini CD that comes with cheap cables. Those discs often contain malware or outdated drivers from 2008.
The good news for Linux users is that support for these chips is usually built directly into the kernel. If it does not appear, you may need
If it does not appear, you may need to manually add your user to the dialout group to access the port:
sudo usermod -a -G dialout $USER
(You will need to log out and log back in for this to take effect).
Once the driver and software are working, you can modify the KD-C1. Remember that transmitting on unauthorized frequencies is illegal in most jurisdictions (e.g., FCC in the US, OFCOM in the UK).
Using the CPS with the active USB driver, you can adjust: