Western Digital Data Recovery
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Design of Western Digital Drives
This feature can have both good and bad consequences. On the positive side, it makes it possible to swap PCBs more readily than other brands of hard drives. If you have access to tools able to read and write the ROM data you can replace the PCB with one from any model of the same family. This means attend recovery laboratory only has to have about 60 circuit boards available to attempt replacement of any Western Digital drive’s PCB. It also makes possible the ability for smart hot-swap, where a drive with damaged service area can have the code loaded into a PCB from another donor drive.
However, this feature can also have negative effects. One common issue relates to when drives have bad sectors in both copies of the drive’s service area.
Western Digital Data Recovery – Drives with Firmware Damage
In such cases, it is possible to correctly repair the service area. Using a technique known as composite read, both copies of the drive’s service area are read at a composite image is made. This is accomplished using the good code red from both copies and excluding the corrupted data. The newly restored service area image is now ready to be loaded onto a printed circuit board which is then hot swapped onto the hard drive.
Other Common Causes of Data Loss on Western Digital Drives
Because Western Digital has made so many models of hard drives, they are prone to just about every failure a hard drive can experience. Especially with the 2 1/2 inch models read/write head failure is common. This is generally due to the fact that such drives are used in laptops and may experience jostling around. Fortunately due to the mass production of these drives donor parts are usually readily available, more so than other models such as Seagate, Samsung, and Toshiba.