I have a similar problem as reported by other users.
A week ago my Passport Elements SE 750 GB (WDBABM7500ABK) stopped accepting data. I decided to update firmware from WD download site and now the computer recognize the disk, identifying it as local disk f: but don’t display any information neither allow access. When I plug it in, the light turns on, and we can hear it spinning normally. I have a lot of valuable info on there and I would like to access and backup it. I would like to know if a solution could be to open the box and to use the disk as internal drive.