Hi I am having some troubles with my device. In fact I am unable to copy files from my computer to my sdcard, I am getting permissions error. I am able to extract files from my card anytime but I am unable to copy files (ex:music file) in the card. I am also able to copy, delete and move files directly from my device when it is not connected to the computer. My computer detects the sdcard correctly, I see my files and I am able to extract only. Formated my card several times , tried to reboot and unmount card several times. No success. Please can you help me with this permission problem.