WD Elements External Hard drive

Hello,
I recently dropped my boyfriends WD Elements 2TB external hard drive. It dropped from a height of about 1 yard onto carpet. However, once he connected it to his Mac Pro Laptop it wasn't recognized in the my computer section. He has very important data on that drive. When he connects the drive through a USB cord the light comes on and it makes a faint zipping sound like its trying to read. Is there a way to retrieve the data ourselves, or is it physically damaged and we'll have to pay an arm and a leg to retrieve the data off the drive. We were quoted min $900 to $3,600 max, and I just don't have that kind of money.


Please help!!