Swap BIOS chip on WD HDD PCB board 004-0B43167

Swap BIOS chip on WD HDD PCB board 004-0B43167

When we need to swap (replace) the BIOS chip on Western Digital PCB Board 004-0B43167, we first need to figure out a few questions: what is the BIOS chip of the hard disk, what is the role of the hard…