PLEASE PLEASE PLEASE HELP ME, what can i do to restore or make my sd card be use again. It's so important because all of my pictures are there, i really need my sd card please help me.
Try cleaning the contacts on the card with a small eraser / alcohol with tissue. Try putting the card into another device like a laptop. If it is a micro-SD you will need a card reader device or a micro-mini adaptor as many of the laptops have the slots for the miniSD.