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Author Topic: Strange USB Problem  (Read 9260 times)

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Offline casper

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Strange USB Problem
« on: January 23, 2012, 10:47:53 AM »
Never come across this before so some help would be appreciated. I have been asked to look at a usb pen that the computer fails to recognise. What's strange about it is the fact that it shows in Disk Management for a few seconds and then disappears, then re-appears and the cycle then continues.
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Offline Stephen

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Re: Strange USB Problem
« Reply #1 on: January 23, 2012, 11:16:03 AM »
check inside the pen where the contacts are and see if there are any foreign objects that are inhibiting the circuit. I take it you have tried it on other machines with the same effect.
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Offline Telone

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Re: Strange USB Problem
« Reply #2 on: January 23, 2012, 11:25:43 AM »
Check that it has not been put through a washing machine  :o
 
Had something similar, unfortunately when it dried out it never worked  :'(
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Offline casper

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Re: Strange USB Problem
« Reply #3 on: January 23, 2012, 11:40:29 AM »
Did check the contacts and they look fine. Also have tried it on numerous computers. The guy that owns it says that it was working one day and when he tried to use it the next he couldn't.
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Offline Bill Bixby

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Re: Strange USB Problem
« Reply #4 on: January 23, 2012, 11:57:07 AM »
Does it smell of Persil?
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Offline Stephen

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Re: Strange USB Problem
« Reply #5 on: January 23, 2012, 12:01:01 PM »
Used it in various machines = not the driver.
 
Could try cleaning the contacts with a plastic eraser but a bit of a shot to nothing.
 
The only other thing I could suggest is a dry solder joint. If you open the device there are four pins coming from the usb contacts that go into the circuit board (usually after a small right angle turn). One of these pins may have got loosened with plugging in and unplugging the drive creating a bad joint with the circuit board - hence the connect disconnect that you see. Resoldering these pins on the ciruit board may help but it is a long shot. Most likely is that the device has went belly up.
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Offline casper

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Re: Strange USB Problem
« Reply #6 on: January 23, 2012, 01:02:59 PM »
I'll look in to that Stephen, thanks.

No it does not smell of Persil lol
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Offline Bill Bixby

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Re: Strange USB Problem
« Reply #7 on: January 23, 2012, 01:13:53 PM »
Is this guy your surgeon, you're going to an awful lot of trouble for him  :) .
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Offline Paul

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Re: Strange USB Problem
« Reply #8 on: January 24, 2012, 02:36:35 PM »
i usually wud throw them in the bin if this happens unless its a 128gb vault.


most people, here anyway work off there pen and use it as a primary data source :o
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Offline Bill Bixby

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Re: Strange USB Problem
« Reply #9 on: January 24, 2012, 02:38:25 PM »
Quote from: Paul on January 24, 2012, 02:36:35 PM
most people, here anyway work off there pen and use it as a primary data source :o
Yeah, dicks.  Thought kids were tech-savvy these days.
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