Can you download the tacho data from the tachograph with Tacho Center? Does this mean that you don’t need card readers etc anymore? sorry probably a stoneage question…
The reminder will not normally clear if you use an “Offline” downloader like this
but if you download it on a system like “Tachomaster” etc. it somehow writes to the card to mark the last download date.
As the “Offline” terminals have no way of knowing date/time, I guess that is why the cards are not updated correctly.