Seagate 500g hard drive is not recognized data recovery is successful

Case:
Mr. Guo’s 500G Seagate mobile hard disk, inserted into the computer, the hard disk could not be recognized. After the testing of the engineer, the mobile hard disk had a physical bad duct with important drawings in it and needed to recover.

Solution:
The engineer first evaluated the damage of the physical bad sectors of the hard disk first. When reading the hard disk again, the sector that was not seriously read was read, and it provided higher integrity for the recovery of the hard disk data.Data blocks, and check the previous recovery work to make up for the missing work, as much as possible to read the data blocks as close as possible; then logical analysis and verification of the file system in the mirror image of the hard disk backup of the device.It is repaired according to the solution of the corresponding file system damage, until the data needed by the user is migrated.