Depending on your hardware version, you may need a firmware download, a physical license card, or both.
These devices are typically ready for smart tachographs but may require a firmware update to support the newest DTCO 4.1 and G2V2 driver cards . dlk pro download key software update
Devices manufactured before 2019 require a "Smart TCO ready" License Card to unlock the hardware's ability to read smart tachograph data. Depending on your hardware version, you may need