Working on a WD Passport Pro 4TB drive that suffered water damage. The dual 2TB drives were configured in RAID 0, RAID chip on the board is ASM1061. Anyone have experience reconstructing these? I suspect like other Passport drives it has hardware encryption though I don't see an Initio chip on the PCB. Any option other than finding a replacement for the damaged Thunderbolt PCB interface?

if it's water damage why did you got to a conclusion that only the PCB is damaged
but lets say is just the PCB

if you are not willing to spend a few bucks for a PCB replacement, i believe that the data is not important to you then move on

If you can upload a detailed photo of both sides of the PCB, then perhaps I could help you with voltage tests.

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Can't say I've come across one of these exact beasts, but if the drives themselves are working connect the drives up and show us sector 0 from each.

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The ASM1061 chip is just a PCI-E to SATA bridge.
We need more photos of everything so we can help you out further.

How much water damage is there? Were the drives powered on when the water damage happened?

I would be very cautious powering on these drives after water damage.
All hope of data recovery will be gone if there is one drop on the platters inside when the drive is powered on.
If there is water inside the drives, then this is not a DIY project.

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Any decent pro would not power up the drive after a water damage.

Actually, it's common sense.

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Sorry didn't realise they were a pro.

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Oh no, I do not know that either. That was a generic comment that I agree with what you said that you wouldn't power up the drive if there was water damage involved.

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No water damage to the drives, they have been imaged. Will post pics of PCB. Not concerned about cost of replacing PCB, I just haven't been able to find the part, 4061-775137-003, anywhere.

See pics

So, it doesn't look like they're encrypted

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Load them up in UFS explorer

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this too

Yes, indeed, it is not encrypted. I hadn't done a hex search yet, had just finished imaging when I originally posted and was assuming it was encrypted like other Passport drives. UFS Explorer detects this

The RAID volume begins and ends at sectors 0x64028 to 0xE8DC8887. I would examine sector 0x64028 on both drives.

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A backup a day keeps DR away.

Success! I've found the correct parameters and am currently extracting the data now. Block size was 32KB. Key to rebuilding correctly was ignoring the EFI partitions on each drive and building the RAID0 starting at sector 409640 on each drive. Oddly despite the correct settings UFS Explorer still wasn't able to detect partition contents but R-Studio loaded it up without any problems.

Thanks to those who offered helpful suggestions, esp fzabkar and pcimage.