I unplugged the MMC from the phone after it turned off. I copied some mp3 files to the card via card reader. After I put the card back to the phone, the card cannot be access. I tried to access the card via file manager, the application keeps loading. When i open the cover of camera, it says system error. Does anybody know what's wrong is the phone or mmc?
Cannot access 6680 MMC card
i think you corrupted your mmc, format it from ur phone and just use the usb cable to transfer the mp3s