Korg Forums

DEAR GUYS,
When i put my SD card in my Korg PA 500 , it is showing an error message " unformatted device or unknown format use the internal format command to initialize the device " can you please tell me how to solve this bug.

Do exactly what the message tells you to do:
"use the internal format command (of PA500) to initialize the device".
For the procedure: see manual, page 224.

Be careful: all data on the card will be erased.
If you don't want to lose data, make a backup of the data to another device.

Also, make sure your card is 2 GB (max).
PA500 will not read/write cards larger than that.

Good luck!