cubase 5 upgrade to 8.5

How can i upgrade from cubase 5 pro to cubase 8.5 pro both 32 bit in the year 2020? I refer to the sycnrosoft licence i guess.

You could buy a Cubase 10.5 Pro update from Cubase 5. With that license on your USB eLicenser you could run Cubase 8.5 Pro, if you can get the installation media somewhere.