Hi.

Could not fint this error message listed in the manual, so a Google search pointed to similiar topic at technicskeyboards.com .
Maybe it's as simple as that it is wrong type SD card for the KN2600?

If look to this thread it may be the problem:
https://technicskeyboards.com/technics-keyboards-forum/kn-2600-sd-card/
_________________________
Cheers 🥂
GJ
_______________________________________________
"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)