Case:
Customers accidentally fell to the ground while browsing the files, and then did not recognize.
Solution:
Because of the external force, the reason for the judgment may be the physical problem of the magnetic head or on the plate. As a result, the final failure of the disk is greatly unexpected. After the 3K power is charged, the magnetic head reset is normal from the sound.It also shows that the normally reset of the magnetic head, it seems that the problem is not necessarily physical.I found 3K and found that the ID cannot be recognized. It seems that the module in the SA area is not normal (the “bitmap”” module of all modules of the USAG module