1 time i had this old floppy drive that didnt work cause it had a broken pin.
i used an old soldering iron and melted away the plastic around the top of the pin, then i just soldered the pin back on. and it worked.
if your drive ends up failing, u could try soldering it back, but i dont know how that would affect a HD. also dont use a good soldering iron on plastic, or anything else but solder otherwise its performance will degrade.