Can You Recover a Lost Nintendo DS Lite Friend Code? No — System Limitations

You can't find your Nintendo DS Lite friend code anymore. Here's why:

• The Nintendo DS Lite is an older system: It doesn't have online features like the Nintendo 3DS or Switch. You can't access your friend code through an online account.
• Friend Codes were specific to the system: They were tied to the individual DS Lite console, not a user account.

If you want to connect with friends on a Nintendo DS Lite, you'll need to:

1. Meet in person: The easiest way is to exchange friend codes directly on each other's consoles.
2. Use a Wi-Fi connection: If you both have a Wi-Fi connection, you can connect through a "Wi-Fi Connection" game, like "Mario Kart DS" or "Animal Crossing: Wild World".

Unfortunately, if you've lost the friend code, you're out of luck. There's no way to retrieve it.