- Be sure that a compatible SD card is being used:
https://rolandus.zendesk.com/hc/en-us/articles/201956439-R-09-Secure-Digital-SD-Card-Compatibility-Guidelines - Try a different USB port on the 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. - Be sure that you are connecting to a USB 2.0 port on your computer; or a USB 3.0 port with backwards compatibility. Check the USB 3.0 specifications of your computer to determine if there is complete support for USB backwards compatibility.
- Physically disconnect any connected power supply and test with new, unused Alkaline or Nickel Hydrogen batteries.
Note: Lithium batteries are not compatible with the recorder. - Be sure that a PSB-6U or UDC-25 power supply is being used only--3rd party power supplies can cause the unit to not operate properly.
- Be sure to log onto your computer as a user with administrative privileges.
- Close/turn off system monitoring/anti-virus software temporarily--this may be preventing your computer from recognizing the recorder.
- The R-09's SD card may be fragmented--due to improper ejection from a computer, power loss while recording, not formatting a new SD card, etc. Try formatting the SD card to alleviate the possible fragmentation on the card.
NOTE: Formatting a memory card will delete all contents on the card. - Try using a different compatible SD memory card (if one is available) to rule out a malfunctioning card.
- Test on a different computer (if available) to rule out a computer related issue.
- 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. The latest version may be downloaded below:
https://www.roland.com/global/support/by_product/r-09/updates_drivers/
Note: If the R-09's version is 1.20 or earlier, no larger than a 2GB SD card can be used to update the R-09. After updating to the latest version, up to 32GB SD card can be used.