Hello.
I have a WD20EARS-00MVWB0 drive, 2 years ago it was damaged after a shorcut in power source. The PCB has no signs of damage, but drive does not detect or spin.
Now I tried to repair it. There was no important data on this drive. I found a replacement PCB in online store and bought it. Mine was 2060-771698-002 Rev P1, and I received 2060-771698-002 Rev A. Lot description and other online sources told that revP1 and revA are compatible.
So I transferred ROM chip and replaced PCB (and cleaned contacts by the way).
Now drive spins up, but then begins to repeatingly click for 3-4 seconds. Then it appears in device manager as WD20EARS, but in drive management I see it as "uninitialized". "Initialize" command results in "i/o error" popup.
Other disk management programs either do not see it, or report "invalid geometry" or zero size.
Question is:
- Is it a sign that something is wrong with HDD itself or ROM, and there's no point of fixing it?
- or could it be incompatibility of PCB (rev P2 and rev A)?

Could you show pcb's photos?

Here they are.

HDD can be keep spin with new PCB? PCB compatible

No, it does not spin after detection.

i got same issue.
i try 3 pcb but it's useless.

Any chance the original board only had a damaged TVS (D3, shorted), or 0R link (R67, higher ohms) and nothing else wrong?

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I checked D3, R67 and R64 on original PCB with a multimeter. R67 and R64 about 0-1ohm (cheap multimeter cannot measure better), D3 works as diode.

I tested D3, R67 and R64 with multimeter. Resistors are 0-1ohms (multimeter cannot measure better), D3 works as diode.

What about the tvs located above r64? You need to test that one as well.

One above R64 also works as diode, conducts in one direction and does not conduct in opposite. I use diode test mode on multimeter.