Most probably your drive has died. When you say that every time a drive failed, it showed up. That is because usually the media fails, and not the circuit. I have had drives where I accidentally damaged the circuit, and as expected, the drive doesn't show up at all.
If the drive is within warranty, I am sure they will replace it.
If the data is your drive is really important, there are some data recovery companies that can attempt to recover it. Call OCX people and ask them if they have any authorized Data Recovery companies, and use one of them. That way, you will not lose your warranty
that should be why bro