Flip the Krome over. You will need to remove the screws on the bottom plate to access the mainboard.
Korg does not officially provide the internal storage image for public download, as they consider this a service-center repair. However, users frequently share recovery images on community forums. Korg Krome Inner Storage Image.img File Download
: Connect your new Micro SD card to your PC using an adapter. Flip the Krome over