This indicates a driver issue. If you are using Windows 10 or 11 with an older Prolific cable, you may need to roll back to an older, compatible driver version (such as version 3.2.0.0).
Turn off the Firstcom FC-136. Plug the 2-pin connector firmly into the radio's speaker/microphone jack, then plug the USB end into your PC. Turn the radio on.
The Last Transmission
Programming your requires the correct Customer Programming Software (CPS) to change frequency configurations, privacy codes, and device settings. Setting channels directly on the keypad can be tedious, while using the dedicated PC interface makes the setup efficient and error-free.
: Most basic functions like squelch and power levels can be accessed via the download software firstcom fc 136
Set sub-audible privacy tones if communicating on restricted regional networks.
With the software installed and the COM port aligned, you are ready to read from and write data to your handheld radio. Step 1: Reading the Initial Radio Configuration
| Issue | Potential Cause & Solution | | :--- | :--- | | | This error requires a software-based reset . Connect the radio to the computer and use the programming software to "overwrite" the locked configuration with a standard working profile. | | "Password?" is displayed on startup | The radio is password-locked. Connect the FC-136 to the computer and use the programming software to perform a password reset. | | The software cannot find the radio | Check that the correct COM Port is selected in the software settings. Verify that the USB cable driver is installed correctly. Try a different USB port on the computer. | | Reading or writing to the radio fails | Close the programming software, disconnect the USB cable, reconnect it, and restart the software. Also, ensure the radio has sufficient battery charge. |
Open Windows (Right-click Start menu -> Device Manager). Look under Ports (COM & LPT) . This indicates a driver issue
: Always install your cable's USB drivers before plugging in the hardware to avoid "device not recognized" errors.
The Firstcom FC-136 utilizes a standard (the distinct 3.5mm and 2.5mm dual-plug format).
Typically a specialized USB-to-serial cable matched to the pins on your Firstcom FC-136.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Plug the 2-pin connector firmly into the radio's
| Feature | Manual Programming | Software Programming | |---------|-------------------|----------------------| | Ease of Use | Limited, requires in-depth menu navigation | Intuitive, with visual interface and batch operations | | Batch Modifications | Not possible | Full support for bulk operations | | Memory Backup | Not available | Complete channel database backups | | Advanced Config | Basic tone settings only | Comprehensive settings including power levels and memory banks | | Learning Curve | Steep | Gentle |
The (and its dual-band variant, the FC-136R ) is a rugged, professional FM transceiver favored for its durability and high cost-performance ratio. While the radio features a physical keypad, advanced configuration—such as editing alphanumeric channel names or setting specific repeater offsets—often requires dedicated programming software. Software Overview and Requirements
: Websites like Knights Electrocom often host free programming software for various radio brands as a service to their customers.