TachoSync/Supported Devices and Firmware Matrix

Supported Devices & Firmware Matrix provides a definitive reference for the minimum and recommended firmware versions required for Teltonika Professional tracking hardware integrated with the TachoSync platform.

Ensuring devices meet these baselines is critical for maintaining stable data download schedules and preventing tachograph remote download (RDL) connection failures.

Firmware Compatibility Matrix

The following matrix outlines the required firmware baselines for all supported hardware models. It is highly recommended to flash devices to the stable recommended version during fleet installation or scheduled maintenance windows.

Device Model	Minimum Required Version	Recommended Stable Version
FMB640	03.01.01.Rev.06	03.01.01.Rev.15
FMC640	03.01.01.Rev.06	03.01.01.Rev.15
FMM640	03.01.01.Rev.06	03.01.01.Rev.15
FMB641	03.01.01.Rev.06	03.01.01.Rev.15
FMC650	03.01.01.Rev.06	03.01.01.Rev.15
FMM650	03.01.01.Rev.06	03.01.01.Rev.15

Technical Notes & Recommendations

• Pre-Deployment Verification: Before initializing a remote tachograph download, verify that the active device firmware meets or exceeds the minimum required version to prevent connection or data sync failures.