This is one case study shared by one client and he recovered the data perfectly.
“I have a WD 500GB WD5000AAKS that a customer brought and the PCB was barely working. I was able to plug it into DFL-WDII and could only back up the modules I attached to this email before the drive died completely and would not spin up again, but both diodes checked out fine. (I believe the family was Tahoe). Read more