it is determined that there are 7 magnetic heads in the hard disk.The difficulty of opening is more difficult than before!Solution:After the initial test

Case:The hard disk is a thick disk of Seagate 1000G. The peers have processed the hard disk but the data has not recovered.When receiving this hard disk, it is really as the peer said that the hard disk has an abnormal noise of “Kada Kada””. The disk has been opened