In response to your questions:
1. I am in the process of contacting the seller
2. No, as to more information, I am fairly certain it was a refurbished nes with an RGB mod. I am from North America and have only learned about SCART. I have A SNES cable coming from Retro Cables in the UK, and I know the SNES I have works… am waiting for the package.
3. BTN0, I also got a remote to go into the settings, if this helps…
4. Default setting for most current firmware.
Thank you much, I really appreciate your help.