Case:
Media Information: Seagate Hard Disk 7200.12 NTFS system; Failure phenomenon: Hard disk cannot be recognized and not recognized.
Solution:
After receiving this hard disk, the data recovery engineer’s test found that the sound of the hard disk was very normal, but the hard disk was always busy and could not be ready. This judgment should be the problem of the Seagate firmware. So the engineer started the hard disk to the UDMA to start repairing the firmware, but the SMART table error was reported in the process of firmware repair. After removing the Smart, the reason may be that it appeared on Smart. It was not enough to test a lot of repair methods. Generally, the failure of the disk of the. 11 and .12 was generally a problem with the magnetic head. Therefore, the data recovery engineer decided to open the magnet. In the ultra -net room, the magnetic head was replaced. After changing the magnetic head, we hung the plate on UDMA and found that it was still busy. After entering the program, we started repairing the firmware. At this time, the Smart was successfully reported. After the exit program, the hard disk has changed from busy disk to a girl who can be recognized normally. Only a small amount of green blocks were found by checking the hard disk. Then the data recovery engineer began to use DE to make a mirror image. After several hours, the mirror was completed, and the data recovery ended smoothly.