When driving a coach equipped with a 1st Generation Digital Tachograph (or Smart Tachograph V1) across the Austrian border into Germany, what is the driver's legal duty regarding the country symbol?

1. The driver must stop at the nearest possible stopping place at or after the border and manually enter the symbol of the country entered ('D') into the digital tachograph
2. The driver must keep driving without stopping and enter the country code next week
3. The driver must eject the driver card while driving across the border at 80 km/h
4. Country entry is never required on digital tachographs