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Old 10-19-2008, 08:55 AM
MrMille MrMille is offline
 
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Default USB not recognised when a known to be working USB key placed in USB slot
Well, the title pretty much says it all.

I have a perfectly good USB drive, and when placed into a clients machine, the little 'green arrow safely remove' icon appears, but the drive doesn't appear in explorer.

Why does this happen?
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Old 10-19-2008, 09:49 AM
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Dodgy USB drivers on the customers machine perhaps? Check in Disk Management to see if the dongle has been given a drive letter. Do other USB devices work in the clients USB ports?
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Old 10-19-2008, 10:23 AM
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Nah, USB mp3 player won't work either.

I suspect the people who 'manage' their machines are cowboys of the highest order. Even the auto update panel was greyed out with no options selectable
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Old 10-19-2008, 10:51 AM
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yep sounds like pirate software
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Old 10-19-2008, 01:44 PM
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had a problem like this on a compaq laptop and it turned out to be a single connection on the actual usb socket was broken from the motherboard but this was a complete bitch to sort as it was such an intermittant problem.
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Old 10-19-2008, 02:44 PM
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Good point - A good way to test the mobo usb controller is to try a USB PCI card and see if they work. If the PCI card doesn't sort it, then you're looking at a driver/software issue.
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Old 10-20-2008, 03:21 AM
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the USB header could have been connected to the motherboard incorrectly especially if you don't have a header block.

you may want to ask if the USB ports have ever worked or if he has just never used them.
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Old 10-20-2008, 04:58 PM
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You might want to check inside "disk management" and make sure a drive letter got assigned to it. I had this happen before on a client's machine. I would plugin my usb flash drive and I would see the green arrow and hear a "da-ding" noise but my drive would not show up. I had to manually set the drive letter in "disk managment". The mapped network drive was already using the letter it was suppposed to use on their computer.
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Old 10-20-2008, 06:24 PM
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I agree about Disk Management. It happens to me all the time. I either have to change the drive letter to an unused one, or I have to give it a drive letter.
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Old 10-20-2008, 08:32 PM
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The machine did have several mapped drives...
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