my daughter's DS fell in the lake and sank to the bottom. It was on when it fell in and after 15 minutes of searching it was found and brought out of the water. The green power light was still on, but the screens were black. Opened it up and let it dry out for 3 days, then little sister tried to turn it on ( and got yelled at by big sis), and now it has been sitting for about 2 weeks without anyone touching it. Is there any hope for it???