Move your newly converted .mcd file into the default FPse save directory (usually located in SDCard/FPse/memcards/ ). Open the app on your device. Go to Settings > Misc > Config Memory Cards .
If you are selecting an MCR to MCD conversion tool (often bundled within larger PLC migration suites like Siemens TIA Portal Migration Tool or Rockwell’s Translation Toolbox), look for: mcr to mcd converter