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SOSdonnees
 Post subject: Western Digital PCB compatibility if different VCM contoller
PostPosted: July 17th, 2019, 12:55 
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Joined: July 7th, 2014, 6:44
Posts: 225
Location: Switzerland
Hi,

I'm planning a PCB swap for a WD Elements hard drive.
Although a new USB 3.0 board would do the job, I plan switching the circuit board to SATA, as a more durable solution after the drive was repaired.

I could find the compatible SATA board and the MCU controllers are same.

However the VCM (Voice Coil Motor) controllers are different (first 3 letters are same).
Is there some compatibility rule for this component?

patient's VCM: B20AA
donor's VCM: B20B8N4

(N.B. I'm aware about swapping the U12 chip.)
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ddrecovery
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 12:59 
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Joined: June 11th, 2013, 17:01
Posts: 1772
Location: Phoenix, AZ USA
What is the PCB number?
Also this drive may be encrypted, do you need the data?

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unknown
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 13:04 
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Joined: October 21st, 2007, 8:48
Posts: 1712
ddrecovery wrote:
Also this drive may be encrypted


SOSdonnees wrote:
I'm planning a PCB swap for a WD Elements hard drive.
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ddrecovery
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 13:24 
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Joined: June 11th, 2013, 17:01
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unknown wrote:
ddrecovery wrote:
Also this drive may be encrypted

SOSdonnees wrote:
I'm planning a PCB swap for a WD Elements hard drive.

You can copy and paste, well done.

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unknown
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 16:54 
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Joined: October 21st, 2007, 8:48
Posts: 1712
I can copy and paste beside I can distinguish between encrypted WD and not encrypted.
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ddrecovery
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 16:59 
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Joined: June 11th, 2013, 17:01
Posts: 1772
Location: Phoenix, AZ USA
unknown wrote:
I can copy and paste beside I can distinguish between encrypted WD and not encrypted.

You are of course correct, I didn't notice that.

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unknown
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 17:02 
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Joined: October 21st, 2007, 8:48
Posts: 1712
That's what I tried to say. No offence at all
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fzabkar
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 17:16 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
To all others who may be confused by this exchange, Elements models are not encrypted.

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sin
 Post subject: Re: Western Digital PCB compatibility if different VCM conto
PostPosted: July 17th, 2019, 17:20 
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Joined: September 17th, 2016, 16:06
Posts: 456
Location: India
Just swap. 99% i haven't bothered while changing/converting from usb 3 to sata boards...specially the 961s to 960s...works.

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