Alex381 wrote:
I just checked health, it was 100% OK.
The only way to know that the drive was 100% OK is to test every sector. As you didn't have the time to clone the drive (reading very sector), I sense that you really didn't fully test the drive.
With these drives with bad PCBs, almost every time there is media damage caused by the heads slapping onto the surface each time the PCB fails before the final blow that completely kills the PCB. Sometimes the media damage is minor, other times it is to the point where the heads are damaged too.
This is a tough lesson for you and your client to learn. If you are serious about becoming a data recovery professional, you must start by refusing to cut corners. If a client can't afford the price, let them go to Jimmy Joe's computer shop where they don't care if they lose the client's data.