Case:
The Customer’s Seagate hard disk cannot be recognized, but the sound of magnetic head reset is normal.
Solution:
First of all, 3K found that the magnetic head can be reset normally. Because there is a preparation on hand, the circuit board replacement work is performed (a large part of the 7th generation disk is caused by the circuit board).XLY entered the discovery that the family number and ROM can be identified. The reason for the fact that the cause of the fault is firmware. First try back up the firmware and find that the INFO module can be backup normally.It is the INFO module that is broken. Because there is a preparation, it is better to handle it. The Info module is directly recovered. After the power is disconnected, the hard disk can be recognized normally. The data is 100%recovered.