The thing is, it's a practiced skill, so sure you can learn to do it. I do not try to perform hardware drive recovery myself but I am a curious type of person and ask a lot of questions. I found some of the people at Drivesavers to be patient enough to answer some of my questions, especially when they are working on a job I have sent in. From what I can gather, success depends a lot on judgement of what approach to use, based on past experiences and personal opinion. There are mechanisms that allow direct, granular control over the hardware, but what do you tell it to do? This stuff is in all kinds of machine code, and the software that controls the machinery many of these places use was written in-house for their private use. They have microscopically pure Clean Rooms for opening drives, thousands and thousands of archived hard drives to raid parts off of and so on.
It's a deep topic. I do use all manner of software recovery utilities, Prosoft, Spinrite, R-Studio, 3 or 4 others...I have baked, frozen and dropped drives at times to try to get them to unstick or wake up, but if I don't hear ANY seek activity upon power-up, or I hear the terminal 'click of death' , I know to not even bother. I send it out and spend my time making money to pay for it rather than entering into a new career. I'm just not willing to devote that amount of research, study and practice into a sideline.
That's the way I look at it.
Of course, if you are bound and determined to acquire this skill set, you will, through time, persistence, research and practice. And Google.
Try deepspar.com, see what you think.
I hope that adds a little perspective to the magnitude of trying to pursue mechanical-level hard drive recovery.
