Table of Contents
DFB Firmware Current builds
TraffiCalm DFB firmware update: Match sign model, ensure power, flash carefully with technical support guidance.

Introduction
Occasionally, TraffiCalm DFB (Driver Feedback Board) systems may require a firmware update to improve performance, resolve communication issues, or add compatibility with new software.
This guide outlines how to confirm your sign’s firmware version, download the latest build, and safely complete the update.
Current Firmware Builds
The following firmware packages are available for download. Select the file matching your sign’s size and LED configuration.
Firmware Version | Description | Download |
M75-9IDFB-00xx.zip | 9″ DFB sign firmware | |
M75-12DFB-00xx.zip | 12″ DFB sign firmware | |
M75-14DFB-00xx.zip | 14″ DFB sign firmware | |
M75-15DFB-00xx US Default Avago.zip | 15″ DFB – Avago US Default | |
M75-15DFB-00xx Canadian Default Avago LEDs.zip | 15″ DFB – Avago Canadian Default | |
M75-15DFB-U00x.zip | 15″ DFB – Universal Firmware | |
M75-18DFB-00xx.zip | 18″ DFB sign firmware |
Preparing for the Update
- Identify Your Sign Model Determine your display size (9″, 12″, 14″, 15″, or 18″) and LED configuration (Avago US, Canadian Default, or Universal). This ensures you select the correct firmware.
- Ensure Stable Power Connect the sign to a reliable power source before starting the update. Interruptions during flashing can corrupt the controller.
- Back Up Configuration (if applicable) If using SafetyCalm DFB Config (or similar), save your current setup before updating.
- Unzip the Firmware Package
Extract the downloaded
.zipfile to a convenient location on your computer.
Updating the Firmware
NOTE: Confirm with TraffiCalm Technical Support that you’re using the correct file before updating.
- Launch the DFB Bootloader Tool included with your sign’s software.
- Connect your sign to the computer via USB or serial cable.
- Select the correct COM Port (for example, COM5).
- Click “Browse” and locate the
.hexfile from the unzipped folder. - Power-cycle the sign — turn it off, wait 3–5 seconds, then turn it on.
- Click “Program” to begin flashing. A progress bar will appear.
- When complete, the message “Programming Successful” will display and the sign will automatically reboot.
If the update fails or the bootloader cannot communicate:
- Verify the COM Port.
- Check cable connection and power source.
- Retry the process. If problems persist, contact Technical Support.
Verifying the Update
After rebooting:
- Open Speed Connect (Web) (or equivalent configuration tool).
- Connect to the sign and go to About → System Info to confirm the firmware version.
- Verify that it matches the new build you installed.
Technical Support
If you have questions or encounter issues during the update:
TraffiCalm Technical Support
Email: support@trafficalm.com
Phone: (208) 773-2068
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