Son opened the casing around the external hard drive

Is it possible for the external hard drive to work after the plastic casing has been opened? If it is, where can I get a new cable because I think that ours has gone bad. when you plug the hard drive in now, it lights up and spins, but does not register with the computer. Please help.

Do you have a WD TV Live Hub?   That’s what this forum is for.

If you’re talking about a WD External (USB) hard disk, those forums are here: