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Holiday notice: we are on holidays from Feb.10th–Feb.22th, we can't arrange the delivery during the holiday, all the boards will be delivered from Feb.22th. Any questions please feel free to contact us.

Samsung PCB Swap Replacement Guide

Samsung Hard Drive PCB Swap Replacement Guide:
Match the board number which is etched on the PCB.

Samsung Hard Drive PCB Swap Guide(Samsung Laptop HDD)

BF41-00315A are the board number should to be match.

If you still don't know which is your donor PCB, please feel free to contact us.

1. We should know not every HDD's problem is caused by damaged PCB. Damaged PCB has the below symptoms:
Damaged PCB always has the obvious burnt marks.
The HDD can't spin. You can't hear any noise or just hear a tick sound, which means the PCB is probably faulty.

Which HDD's problems are not caused by PCB:
HDD has a buzzing voice or a sound like it is trying to spin.
HDD can spin. However, it makes a lower clicking noise. It spins for a moment and then slow down.
HDD will power up normally (no ticking noises, errors etc) but will not be recognized by the computer
HDD will power up normally and be recognized correctly but will report a size of 0 bytes
HDD will power up but report SMART errors on boot

2. If you make sure your HDD's problem was caused by PCB failure, you should know how to find the matching PCB now.

Find the compatibility Samsung Hard Drive PCB on now!
1. Samsung PCB
2. Samsung 2.5" Laptop PCB

3. In most cases, swap PCB is not directly change the fault PCB with the donor PCB. Should confirm the donor PCB should be adapted for the HDD.

Most HDD boards have the BIOS (ROM or NVRAM chip) which includes the unique data to access the HDD system area. If the BIOS information is not compatible with your HDD, there is no way to read the HDD's data. Because of this, we should use the original PCB's BISO when we swap PCB.

BIOS is the 8pins (4 pins on each sides) with 25P05VP、25P10VP、25F512、25F1024、25F1024AN、SST25VF512、SST25VF010, etc.

HDD PCB ROM Chip Exchange for PCB Swap
Hard Drive PCB Swap Guide(ROM Chips Exchange)

How to change BIOS
You can move the BIOS from your original PCB by using hot-air gun, then solder it on the replacement board. Or you can find the electronics repair shop to help you.

If there is no BIOS on the PCB, it means the BIOS is integrated on the Main Controller IC
You should exchange the Main Controller IC to let the HDD be recognized. Move the Main Controller IC (the biggest chip on the board) is complex jobs which need you have certain technique. Some electronics repair shop can do it.

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