Unfortunately, But most likely Kiss it goodbye – very sorry.
It is possible to disassemble the unit and remove the HDD. Should be a standard PATA or SATA HHD.
Verify that a connector did not come loose, doubt it but possible.
Once you see the manuf of the HDD, go to the manuf web site and download utilities for the drive.
Temporarily install in a desktop: (1) If it shows up in my computer and you see the files - Great, just the enclouser (2)Run the manuf utility, if it cannot see it – it is probably toast.