Recovering from an external drive which has no volume label assigned

Hi !

Is recuva supposed to be able to recover from drives which hasn't been assigned a drive letter?

I have a portable drive which is in trouble,

Windows device manager thinks it's ok, but it is not assigned a drive letter. I have tried assigning it, but gets an error message.

I thought maybe recuva could help recovering from the drive, but it doesn't seem to find anything from tha drive.

Thanks for any assistance!

Under Advanced / Options / Drives there are 6 boxes

Tick them all