You must use a "virgin" (unprogrammed) card. Once a card is locked to another vehicle, it cannot be reused without replacing the internal PCF chip. Step-by-Step Guide to Programming a Key Card
Disclaimer: Procedures can vary slightly depending on the Renolink version and vehicle model. Always ensure your vehicle battery is fully charged before starting. 1. Connection and Software Launch renolink key card programming
A specialized OBD2 cable (typically an OBDLink SX or a modified v1.87/v1.99 interface). A Laptop: Running Windows 7, 10, or 11. You must use a "virgin" (unprogrammed) card