Any fault like a problem in the structure and construction, failure of the units that supply the power to the hard drive, fault in the firmware, drives that have bad sectors, etc., should be taken directly to the company. You shouldn’t try to retrieve the data on your own. Taking the help of the available software also increases the risk of further deterioration of the files. Consult companies like Data Clinic Ltd. for recovery of the data lost.
For example, assume your hard drive has encountered some mechanical failure. Its heads are not working properly. Because of this, it fails the self-test, which is crucial before starting the PC. As a result, it keeps resetting itself. Then, a firm that provides data recovery quality should be taken into consideration. Data Clinic Ltd. recovers the deleted data from hard drives, Android phones, iPhones, NAS disks, and RAID 5.