Díky, ještě jsem našel toto http://datacent.com/datarecovery/hdd/samsung/HD501 LJ

Ten druhý odstavec mě vůbec netěší.

If this is the case you can try to swap PCB from another hard drive of the same model but the chances of success, especially on newer hard drives, are close to zero. The problem is that logic board on modern hard drive is adapted to the head disk assembly it was manufactured with. In our lab we use specialized software and hardware to rebuild these adaptive parameters in ROM to make donor PCB fully compatible with damaged drive.