What is the size (capacity) and type (SD or SDHC) of the memory card?
Have you formatted the card using the camera's Format process?
If the camera will allow, format the card using the attached instructions. It is possible that the card has become fragmented or a single corrupted file is inhibiting the read/write process. Finally, the card may have just physically failed. If the formatting does not restore normal operation, then, a new card is the next thing to try. Please let me know the result.
Please keep in mind that my diagnosis & solutions provided are directly dependent on the accuracy of your description of the problem. As with any "do it yourself" fixes, success is a "team effort", since I can't see or touch the camera, and relies on the customer's manual dexterity and ability to follow the instructions well.If you require additional information, please use the Reply to Expert Tab to contact me. Click the ratings only after our exchange is complete and you are satisfied.If you are satisfied that my answer is accurate, please do not forget to rate my answer OK, Good or Excellent.Thank you
Transfer any files that you want to keep first, since formatting will erase everything.