Worked on the Samsung/TizenRT repository to enhance Wi-Fi scanning reliability and regulatory compliance for embedded systems. Focused on stabilizing the Wi-Fi Scan API by ensuring consistent return values and robust handling of multi-scan scenarios, particularly when no access points are found. Introduced a new RTX interface to reset the regulatory domain dynamically during roaming events, improving compliance and user experience. Leveraged C programming and network programming skills to implement firmware-level debugging, event-driven state management, and cross-component collaboration with the BK7239N platform. The work resulted in more reliable network transitions and reduced roaming-related issues in real-world embedded environments.