1. Insert the SD card into the SD card slot on the JM4 rear panel.
2. Press the SAVE button; you'll see a list of menu items in the LCD.
3. Turn the wheel and navigate to Format Card, then press the R Arrow to format
4. Press the Up Arrow to confirm "Yes". The format process will take a few seconds.
5. When the format process is complete, press any button to begin a new session.