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Josh256
 Post subject: WD 800067 Cannot read real data after head replacement
PostPosted: April 24th, 2025, 20:24 
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Joined: February 12th, 2021, 1:27
Posts: 73
Location: Australia
WD charger 800067 had a faulty PCB and dead heads. we swapped PCB, transferred ROM chip and controller chip from original PCB to donor. then HDD turn on but couldn't identify, next we swapped heads, now HDD powers up and identify and in MRT data explorer, there is data but it's not real data, also tried to unlock SED, any suggestions?


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WD 800067ID.jpg
WD 800067ID.jpg [ 259.96 KiB | Viewed 21749 times ]
WD 800067 Exp.jpg
WD 800067 Exp.jpg [ 166.62 KiB | Viewed 21749 times ]
WD 800067 Data .jpg
WD 800067 Data .jpg [ 932.72 KiB | Viewed 21749 times ]
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digisupport
 Post subject: Re: WD 800067 Cannot read real data after head replacement
PostPosted: April 25th, 2025, 0:41 
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Joined: March 6th, 2010, 3:46
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Location: Kolding | Denmark
Repair the original pcb and try with that.

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fzabkar
 Post subject: Re: WD 800067 Cannot read real data after head replacement
PostPosted: April 25th, 2025, 3:06 
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Joined: September 8th, 2009, 18:21
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Josh256 wrote:
we swapped PCB, transferred ROM chip and controller chip from original PCB to donor.

By "controller chip", do you mean MCU?

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Josh256
 Post subject: Re: WD 800067 Cannot read real data after head replacement
PostPosted: April 25th, 2025, 9:30 
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Joined: February 12th, 2021, 1:27
Posts: 73
Location: Australia
fzabkar wrote:
Josh256 wrote:
we swapped PCB, transferred ROM chip and controller chip from original PCB to donor.

By "controller chip", do you mean MCU?


I mean this chip that marked with red circle around it? I was told by MRT technician that this chip holds the encryption key, Is it the wrong chip?


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WD877333 800067 (2).jpg
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fzabkar
 Post subject: Re: WD 800067 Cannot read real data after head replacement
PostPosted: April 25th, 2025, 11:58 
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Location: Australia
That's the USB-SATA bridge. It does not have an encryption key.

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gps31
 Post subject: Re: WD 800067 Cannot read real data after head replacement
PostPosted: April 26th, 2025, 0:40 
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Joined: January 18th, 2010, 23:53
Posts: 346
Location: india
Can u upload your original Resource backup in ABA mode?
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IAitaliassistance
 Post subject: Re: WD 800067 Cannot read real data after head replacement
PostPosted: April 26th, 2025, 3:02 
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Joined: April 25th, 2025, 10:22
Posts: 10
Location: italy
it's because Chargers encrypt data via MCU.
You changed PCB, so MCU is different, so data is encrypted.
You need to use original PCB (convert to SATA or use solderless PCBs or....)
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