It's rather peculiar case to me...

MODEL SP2004C. NO SPIN.

Swapped with SAME PCB NO (BF41-xxx), DONOR HDD WAS SP2504C, but same pcb no and revision. It doesn't have any ROM Chip.

Well, now the drive spins but detected as 250GB, as SP2504C (the drive is 200GB and Model: SP2004C)

Load from HDD is fine... Comes to READY.
FW Diagnosis 4 bad modules...

MOVLY001
BOVLY001
BPES2
RCO_LOG

What to do next?

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SHAHI
shahi.mahbub@gmail.com

Learn how Samsung work.

You have the answer if you revise exactly what you have done step by step.

P.S. modules were most probably fine, it's just the way you worked that is not

Sounds like the heads map is different, for one.

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These drives have ROM in MCU if possible try reading ROM from old pcb or find ROM compatible with your hdd .

If you wish to repair your board, and assuming it's feasible, then upload a detailed photo of the component side.

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A backup a day keeps DR away.

This is the image...

The PCB has no visible damage...
Here is the PCB Pic

http://www.donordrives.com/media/catalog/product/cache/1/image/28c43211aab6caf8178d385058449c0e/i/m/img_0073.jpg

_________________
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There is no substitute for education and experience
THANK YOU
SHAHI
shahi.mahbub@gmail.com

Measure the voltages at the two TVS diodes and zero-ohm resistors near the SATA power connector.

If they are OK, then measure the voltages on the pins of the transistor at the top left corner of the MCU.

Measure the voltages on the pins of the transistor between the motor terminals and the motor controller.

Measure the voltages at each of the three (?) coils near the motor controller. Why did you clip this part of the photo, BTW?

_________________
A backup a day keeps DR away.