Wd hdd problem detecting

i have a 1 tb wd hdd…it was working fine. den one it got hanged and i hd to pull out d cable, from den wen i put d cable back on…nothing shows…  even i can’t use disk utility or any other software cause nothing is showing or detecting…  i can see light blinkin, i can hear some disk rolling and a beep in between in d hdd…maybe theres a bad sector…bt there is nothing on the screen on mac dat i can do something… need help, got lots of movies and tvshows in it…


Have you tried the unit with a different cable… or different computer?