Hi, I’m interested in buying a PCB from you. Its for a hitachi 750gb hard drive. This was mounted in a Samsung Laptop. The old PCB has the sticker number: 0J11457. I find this PCB in your list under IBM/Hitachi. Can I be sure the PCB is just the same? And do you know If I will need to exchange the BIOS/Main Controller IC?
– https://www.hddzone.com/hitachi-pcb-0j11457-p-480.html is your donor PCB.
When you get this PCB, you need to change the BIOS. You can move the BIOS from your original PCB by using hot-air gun, then solder it on the replacement board