Hard drive failure troubleshooting checklist
I have found that if the harddrive is overheating, it is spinning, but won't show you data or crashing then put it in the freezer, I put it in a plastic bag sealed, I then will drop it after I try it and it still doesn't work. The drop test and freezer has been quite successful in recovering data. I had one drive that I could run for about 10 minutes and then would freeze it again and get another 10 minutes to pull the data. I was successful in recovering all important data and saving a couple of thousand dollars in recovery process.