After changing USB-Cables and USB-C Ports on my Laptop I tried also the USB-A Port. That was the key. So for everyone with a Lenovo Thinkpad T480s, the USB-A Port on the left side was working for me.
After changing USB-Cables and USB-C Ports on my Laptop I tried also the USB-A Port. That was the key. So for everyone with a Lenovo Thinkpad T480s, the USB-A Port on the left side was working for me.