Firmware Corruption Data Recovery / Damage to the Firmware Zone

In hard disk drives, firmware is the software code that controls, and is embedded in, the physical hard drive hardware.
Hard drive firmware is typically found on a flash memory chip on the hard drive PCB. Often the firmware will need to access various drive unique parameters from the hard disk platter surface during operation to ensure the correct functioning of the hard drive at all times.
The firmware controls all aspects of the internal hard drive operation:

• When a hard drive is powered on, it is the firmware that is responsible for correctly configuring the hard drive and putting it in a ready state that will then allow the host PC to load the Operating System.
• During the operation of the hard drive it is the firmware that ensures the correct operation of the hard drive, allowing it to correctly interact with other components on the system
• When the hard drive is powered down, a shutdown sequence is executed by the firmware that ensures the hard drive powers down correctly so that it will operate successfully the next time it is powered on.

Hard disk drive failure due to firmware problems

There are a number of hard drives that have apparent firmware issues. Damage is sustained to either the firmware code itself, or to some of the hard drive parameters located on the hard disk platter surface that are accessed by the firmware. According to the OS, used to format the drive, [i.e. FAT16, FAT32, NTFS, HPFS, etc.], the system areas will include a master resource of the media unit.
These master resources may include a bootstrap, allocation, or organizational resource. This is a “brain” of your drive.

If any of these resources is adulterated with either erroneous or malicious data, the media unit may be rendered partially, completely, contextually, or apparently dysfunctional.   Examples of such damage are when a DOS based unit indicated that no valid boot resource is available, or a MAC fails to initialize.
The adulteration of a key system area, will often effectively affect the media unit by the introduction of false program paths, or invalid resource tables.   If false program paths are introduced, be they well designed or simply erroneous, will cause the system processor(s) to execute commands which are either invalid or at the very least not in the interests of the user.

• The hard disk will spin up when powered on, but be incorrectly recognized / not recognized at all by the computer
• The hard disk will spin up & be recognized correctly by the computer but the system will then hang during the boot process
• Recovering data from hard drives with firmware failure requires low level reprogramming / manipulation of the hard drive. It is not possible for a PC repair shop to do this. CompuRecovery has proprietary equipment that allows us to successfully recover data from hard drives with firmware faults. We receive firmware updates from all major hard drive manufacturers on a regular basis.

Call CompuRecovery and talk your problem through with us on 866-424-5123, or get a quote and we'll call you back