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).
: Very common in budget cables. Windows often detects this automatically, but you may need the CH341SER driver if it isn't recognized.
Right-click the Windows Start menu and select . Scroll down and expand the Ports (COM & LPT) section.
The WLN KD-C1 is a popular, ultra-thin UHF two-way radio favored by event planners, security teams, and outdoor enthusiasts. To customize its frequencies, privacy codes, and settings, you must connect it to a computer. This requires a compatible USB programming cable and the correct USB driver.
To make your PC talk to your radio, you need a programming cable and, most importantly, the correct USB driver.
The WLN KD-C1 USB driver plays a vital role in ensuring the proper functioning of the device. Its primary functions include:
Plug the USB end into your PC. Open Device Manager (Windows + X > Device Manager) and look under Ports (COM & LPT) .
Open the .exe file for your specific chip (CH340 or PL2303) and follow the prompts.
To set up the USB driver and program your WLN KD-C1 radio Go to product viewer dialog for this item.
If you see "Prolific USB-to-Serial" with a yellow triangle/Error Code 10, you must manually "Roll Back" or update the driver to an older version.
Select the exact number you verified in the Device Manager. Select the correct Vendor ( WLN ) and Model ( KD-C1 ).
Error: "Unknown USB Device (Device Descriptor Request Failed)"
Right-click CH341SER.EXE and select "Run as Administrator."
Open your programming software (such as the native WLN KD-C1 Setup or CHIRP) and ensure the COM port matches the one assigned in Device Manager. Chirp not working with WLN KD-C1 and CH340 cable?
Error: "Failed to Connect to Radio" / "Communication Timeout"