I bought an external hardisk casing (3.0) for my old 1tb laptop hardisk to use it externally. But after using it once for transferring data, it stopped working for the next time. I tried to connect the hardrive case to my laptop, even the led lights on external case is not blinking at all. But, I can hear the fan of the hardisk running and then heating up ubnormally. I am really in need to access my files on that harddisk. Can someone help me to sort out this problem?