Click the button inside the software interface. The utility will flash an indicator light or display a status message saying "Waiting for Swipe."
If you want to expand your project, you can learn more about formatting standards by reviewing the official ISO/IEC 7811 Magnetic Stripe Standards documentation. Which (Windows, Mac, Linux) are you using? What specific error message are you seeing, if any? magcard write read utility program free link
What are you trying to write? (Employee IDs, gift cards, etc.) MagCard Utility Program Guide 2017 | PDF - Scribd Click the button inside the software interface