Even if the SD card doesn't have Cura on it anymore, the sample files have the key settings at the start of the files if you open them a text editor.
The only issue is Cura changed the name of some settings between versions, so you need to work out/guess what they've been renamed to.
This article is probably as good a place as any to start - Ender 3 (Pro/V2) Cura Settings: Best Ender 3 Cura Profile | All3DP
There are ready made profiles available, but they can be quite or miss.
The only issue is Cura changed the name of some settings between versions, so you need to work out/guess what they've been renamed to.
This article is probably as good a place as any to start - Ender 3 (Pro/V2) Cura Settings: Best Ender 3 Cura Profile | All3DP
There are ready made profiles available, but they can be quite or miss.