Case:
The customer said that this disk was the original disk of the Dell machine. During the normal boot use, the external force case was dropped from the table. It has tried to mount the hard disk to the USB interface for reading operations. The data cannot be read.
Solution:
When the external force causes the power to stop after power, it is generally scratched by the position of the magnetic head or the location of the firmware area.Magnetic head, equipped with WD -unique magnetic head -stop frame, has no scratching plate, deformation of the magnetic arm and the end of the magnetic head.Change the magnetic head directly, can recognize the disk, use DE to analyze the logic disk successfully, knock on the disk when the second logic disk data is out, and do not recognize.With targeted recovery, a total of 3 magnetic heads were used before and after this market, which basically restored the data specified by the user.