I have the below Seagate Barracuda that I think spins up nicely, but is not detected in Disk Utility (macOS). I unfortunately do not know the history of the drive, other than that I suspect age might be in play.
Any ideas on what could be wrong would be appreciated. Please let me know if I can provide further information.
Thanks in advance.
Note: There seems to be some discoloring on the circuit board.
UPDATE:I have successfully followed the guide posted by Mech-maniac and can now see the following:
However, ddrescue fails to read anything. Why could this be?