The following is information to help troubleshoot the R-05 recorder in the event that the unit no longer recognizes an SD memory card:
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Be sure that the SD card is inserted into the card slot all the way. Instructions can be found on page 32 of the Owner's Manual.
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Try testing the R-05 with new, unused Alkaline or Nickel Hydrogen batteries.
Note: Lithium batteries are not compatible and are a common reason why customers have reported this issue. - If a power supply is being used, be sure that it's a Roland brand PSB-6U or UDC-25 only--3rd party power supplies can cause the unit to not operate properly.
- Test with the original recorder's SD memory card that was included with the product new.
- If the issue is resolved with the original SD memory card but is still receiving error messages or having issues with a different SD card, be sure that the card is compatible:
https://www.rolandus.com/support/knowledge_base/201977559 - Test with a different compatible SD card.
- If the issue continues with the original SD card included with the product, and any other compatible SD card that is used, the R-05 may need to be serviced. To get the R-05 serviced, you must first obtain a Return Authorization number (RA). You can do so by using our online service request form on our site here:
Roland Service Request
Additional service rate and warranty information can be found here:
Service and Repair Information