clone GDEMU & code veronica

[dreamcast459]

picked up a clone GDEMU from retroscaler on aliexpress sellers listing says its version 5.20. anyway does anyone know how i can get both skies of arcadia and code veronica working? setting this up for a friend as a birthday gift and hes not tech savy so i need these games to be plug and play for him

heres a link to the one i purchased i just wanna get these two games working

https://www.aliexpress.us/item/32568032 ... pt=glo2usa