Swapping the control boards works on some makes (wd), make certain it is exactly the same model and revision. exactly.
"close enough" never worked for me, not even once.
By far just a slight "spin" by hand along the axis of travel of the disk, a quick gentile flicking motion, works to unfreeze the spindles of most stuck drives.
Some drives responded to a gentle heating of the spindle bearing with the hot air.
"Spinrite" is complete horse-shit, don't listen to anyone saying otherwise.
Most drives people brought in were just corruptions,
photorec and it's associated programs (testdisk) are also invaluable..
- a MyBook that isn't recognized anymore?
I've figured out there's probably some encryption in the casing because when I disassemble it and connect it directly it shows up as unformatted or something.
- an ssd which seems even more dead.
Personally I've gotten back erased data (photorec) and data from at least 2 other disks (tilting the disk or freezing the disk), but these two have me stumped which is sad since they broke shortly after each other and one were supposed to be the backup ;-)
Would you happen to know why they'd transform the data instead of just writing through?
Oh: and I also added detail about another drive to my question. I didn't think anyone would answer that fast :-)
The external drives which offer 'encryption' nearly all do it through software on the host PC and sometimes the drives built in encryption (did you know all modern hard drives can encrypt data before writing it to the platters? - nobody uses it because you can't tell if the drive really is encrypting your data or just pretending to).
So, if I'm really lucky I can use testdisk to find the partitions and just mount it read only from there without involving a recovery company?