The photo frame may show this error message if the card was not formatted to with a compatible file system. To resolve this issue, first make sure you have any images that are saved on the memory card backed up on your computer. Afterwards, format the memory card in the digital photo frame. After the card is formatted, you can put the images back onto the memory card.
WARNING: There is a risk of data loss. Formatting the memory card will permanently delete all data stored. Make sure any images that saved on the memory card are backed up on your computer first.
NOTE: If model-specific information is needed for how to format a memory card or to check the supported memory card file systems, refer to the instructions supplied with the product. Manuals are posted on your model support page.