Help with waveshare 3.5inch DPI LCD touchscreen set up

I have been trying for weeks now, I can’t seem to get to work. I’m not sure if its because this screen is new but some help would greatly be appreciated.

Please connect to Volumio via SSH and post the output of

cat /boot/config.txt

cat /boot/userconfig.txt

and

ls -al /boot/overlays/waveshare*

BTW: What Pi model are you using?