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 Post subject: Usb pin out
PostPosted: September 27th, 2018, 12:40 
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Joined: September 27th, 2018, 12:22
Posts: 5
Location: scotland
Hi,

Usb connector of my wd elements is out, it's a recurrent problem on this model and usb is welded to cardboard.

What is the best solution to restore usb pin or to access my data ?

Regards.


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 Post subject: Re: Usb pin out
PostPosted: September 27th, 2018, 13:20 
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Joined: January 8th, 2008, 5:21
Posts: 925
Location: uk
Hi. I think you are saying the usb connecter has broken away from the printed circuit board pcb?
For a diy solution the best 'fix' would likely be to solder a 4 pin usb2 type cable to the relevant points on the pcb and transfer the data to another drive etc.

If you can upload a photo image of your broken pcb then somebody can indicate the connection points.


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 Post subject: Re: Usb pin out
PostPosted: October 5th, 2018, 7:25 
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Joined: September 27th, 2018, 12:22
Posts: 5
Location: scotland
Hi,

No, the problem is that the usb connector doesn't connect to the usb cable correctly.
Some of internals pins of the connector to usb cable is broken.
It's a specific connector of western digital.
It happens after multiple unplug on this model.

Is there a method to access data ?

[img]<a%20href="https://ibb.co/mw0rUK"><img%20src="https://preview.ibb.co/mfZwwz/Image1.jpg"%20alt="Image1"%20border="0"></a>[/img]
[img]<a%20href="https://ibb.co/m1cD9K"><img%20src="https://preview.ibb.co/jT2fpK/Image2.jpg"%20alt="Image2"%20border="0"></a>[/img]
[img]<a%20href="https://ibb.co/jKEt9K"><img%20src="https://preview.ibb.co/e3sPGz/Image3.jpg"%20alt="Image3"%20border="0"></a>[/img]


Regards.


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 Post subject: Re: Usb pin out
PostPosted: October 5th, 2018, 15:05 
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Joined: August 9th, 2007, 8:40
Posts: 789
Location: United Kingdom
Try reading Dick’s post again

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 Post subject: Re: Usb pin out
PostPosted: October 5th, 2018, 18:38 
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Joined: September 27th, 2018, 12:22
Posts: 5
Location: scotland
Hi,

How to find relevant pins on pcb ?

On the pcb directly, it seems difficult, pins are very small and there is a varnish.

The photos of it :

https://ibb.co/mw0rUK
https://ibb.co/m1cD9K
https://ibb.co/jKEt9K


2 types of connector are present :
- one connector with 12 pins
- one connector with 2 pins

and the usb broken connector

Can it works with a new pcb with good usb connector ?

Or connect to usb cable to the pins ?

Regards.


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 Post subject: Re: Usb pin out
PostPosted: October 5th, 2018, 20:02 
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Joined: December 8th, 2010, 11:37
Posts: 738
Location: Ottawa, Canada
totofb wrote:

Those pictures are not helpful. You need to remove the PCB from the drive with a torx driver and take a clear picture of the component side of the PCB. You could also try a micro USB cable plugged into part of the USB connector. Sometimes that will allow access to the data, all other things being okay.
Attachment:
Micro-USB.jpg
Micro-USB.jpg [ 15.99 KiB | Viewed 8285 times ]

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 Post subject: Re: Usb pin out
PostPosted: October 6th, 2018, 0:40 
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Joined: December 4th, 2012, 1:35
Posts: 3844
Location: Adelaide, Australia
Usually you would use a microscope to fix, either a new connector or wires and recover data. 10x magnification is plenty. It isn't very hard at all. I would never use the HDD again after recovery. Put it in a drawer as a future "Backup"


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 Post subject: Re: Usb pin out
PostPosted: October 6th, 2018, 6:48 
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Joined: May 21st, 2007, 16:10
Posts: 1592
Location: Gothenburg/ Sweden
Why not buy a good usb pub from eBay or similar, swap the ROM chip and use the drive as normal?
What is the pub number? Take a pic of the backside of the drive and post it.

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 Post subject: Re: Usb pin out
PostPosted: October 6th, 2018, 14:06 
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Joined: September 27th, 2018, 12:22
Posts: 5
Location: scotland
Hi,

I realized the pictures of the pcb removed for the usb pins identifying:

https://ibb.co/moj41z
https://ibb.co/ifEXoe
https://ibb.co/b0LcMz
https://ibb.co/nLZREK
https://ibb.co/n50iuK
https://ibb.co/nBPREK

citation :
You could also try a micro USB cable plugged into part of the USB connector. Sometimes that will allow access to the data, all other things being okay.

=> For micro usb cable, how can I plug power ?

=> Where can I find ROM chip on pcb ?

Regards.


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 Post subject: Re: Usb pin out
PostPosted: October 6th, 2018, 14:49 
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Joined: May 21st, 2007, 16:10
Posts: 1592
Location: Gothenburg/ Sweden
Buy a pcb 771960...and move marked komponent.


Attachments:
DSCN0065.jpg
DSCN0065.jpg [ 73.7 KiB | Viewed 8195 times ]

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 Post subject: Re: Usb pin out
PostPosted: October 7th, 2018, 9:34 
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Joined: January 8th, 2008, 5:21
Posts: 925
Location: uk
So I would prepare a spare usb cable and solder the four connections as indicated in the edited photo.
Attachment:
usb2 connection.jpg
usb2 connection.jpg [ 4.02 MiB | Viewed 8144 times ]


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 Post subject: Re: Usb pin out
PostPosted: October 9th, 2018, 7:58 
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Joined: September 27th, 2018, 12:22
Posts: 5
Location: scotland
Hi,

I soldering many times pins but the soldering did not hold and pin with a part of the card board snapped.
Pcb seems to be a very poor quality.

The picture :

https://ibb.co/nJkLyp

I think the pcb is out

A short-circuit is now present between the 2 pins D+ and D-. :(

How to solve this problem ?

Regards


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 Post subject: Re: Usb pin out
PostPosted: October 9th, 2018, 14:36 
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Joined: January 8th, 2008, 5:21
Posts: 925
Location: uk
Sorry to say but your soldering skills and probably your equipment is not up to the job!
To remove the short might be difficult as it appears you have poked the two little solder pads to death.
It might be possible to remove the short circuit and connect to the other side of the pcb?

Now a really easy job has been made harder and probably your best move is to buy in a new pcb and swap the chip as suggested by mr_spokk.

My best advice is to get somebody with the required knowledge, tools and skills to do it for you.


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 Post subject: Re: Usb pin out
PostPosted: October 9th, 2018, 14:43 
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Joined: November 29th, 2006, 10:08
Posts: 7843
Location: UK
dick wrote:
Sorry to say but your soldering skills and probably your equipment is not up to the job!
To remove the short might be difficult as it appears you have poked the two little solder pads to death.
It might be possible to remove the short circuit and connect to the other side of the pcb?

Now a really easy job has been made harder and probably your best move is to buy in a new pcb and swap the chip as suggested by mr_spokk.

My best advice is to get somebody with the required knowledge, tools and skills to do it for you.



I have to agree.

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