X86 Hardware issues (Graphics, WiFi, Onboard Sound, external DACs, Disks, BIOS/UEFI Boot problems etc.)

I have Volumio version 2.916 installed on an old IBM Thinkpad T41 having wired connection to Internet. My subscription plan is Virtuoso. I have my CD collection saved on the hard disk under folder INTERNAL. This arrangement has proven to a practical solution except the fact that Wi-Fi connection is not working (worked earlier with Lubuntu).

Now I would like to update to Volumio 3 and continue my present Virtuoso subscription. However I cannot implement the updating from Volumio interface. I am able to start update checking, but after a while the OS gives the messages “No updates available” and “You’re already on the latest version”. Could somebody inform me if updating from Volumio 2 to Volumio 3 is not possible in this way or am I doing something incorrectly?

Naturally I could install Volumio 3 using a new OS image, but I expect that I would then clean up the whole hard disk including the copies of my music collection. In addition I don’t know what happens to my Virtuoso subscription.

I would welcome propositions how to update in this case to Volumio 3 so that I can continue my Virtuoso subscription and retain my music collection on the hard disk.