How to reset a Korg nanoKontrol2 to the factory default settings:
- Disconnect your nanoKontrol 2 from USB power
- Press and hold down the CYCLE, PREV TRACK, and NEXT TRACK buttons
- While holding down those three buttons, connect your nanoKontrol 2 to USB power from your computer.
- The transport buttons on the left side of your nanoKontrol 2 will blink a few times to let you know the factory reset is complete.
- Release the buttons. That's it!