The following is information to help you troubleshoot in the event that your computer does not recognize your Roland recorder:

1. Try a different USB port on your computer and/or a different USB cable--just to be sure that one of these is not the cause.
   Note: Do not connect the recorder to a USB hub while troubleshooting.
2. Test with new, unused Alkaline or Nickel Hydrogen batteries.
   Note: Lithium batteries are not compatible with the recorder.
3. Be sure to log onto your computer as a user with administrative privileges.
4. Close/turn off system monitoring/anti-virus software temporarily--this may be preventing your computer from recognizing the recorder. 
5. You may have a fragmented memory card--due to improper ejection from a computer, power loss while recording, not formatting a new SD card, etc. We would recommend formatting the SD card to alleviate the possible fragmentation on the card.
   NOTE: Formatting a memory card will delete all contents on the card.
6. Be sure that your recorder's system version is up to date. The recorder's current version appears on the display when powering on the unit. You may download the latest version for your recorder by clicking on the link below:
   Updates and Drivers
7. Try using a different SD memory card (if one is available) to rule out a malfunctioning card.