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Old 01-21-2008, 10:06 AM   #1
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PRS-505 is an UNRECOGNIZED USB DEVICE

When I first got my PRS-505, it worked as a card reader on every PC I tried it on. Lately, it has been an "UNRECOGNIZED USB DEVICE."

I've never installed the Sony S/W, and hope to not have to.

Any ideas?

Andy
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Old 01-21-2008, 10:09 AM   #2
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Go to Windows device manager and look for the unrecognised device (it'll show up as question mark). Delete it, then re-connect the 505. Hopefully it'll be OK then.
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Old 01-21-2008, 10:13 AM   #3
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Do you have any network drives? if so, disconnect them all and try replugging in the 505 and see if it recognizes it. Sometimes Windows wants to use a specific drive letter for removable media and if that drive letter is used by a network drive, it won't work well.
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Old 01-21-2008, 01:46 PM   #4
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Just had the same problem. The above mentioned fixes didn't work, so I tried reinstalling the sony library software/drivers, and that fixed the problem. HTH
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Old 01-22-2008, 04:51 AM   #5
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Quote:
Originally Posted by JSWolf View Post
Sometimes Windows wants to use a specific drive letter for removable media and if that drive letter is used by a network drive, it won't work well.
Yeah, this is really a pain in the back
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Old 01-22-2008, 06:31 AM   #6
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You can use Disk Management section in Computer Management applet to reassign drive letters.
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Old 01-22-2008, 06:39 AM   #7
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Quote:
Originally Posted by recycledelectron View Post
When I first got my PRS-505, it worked as a card reader on every PC I tried it on. Lately, it has been an "UNRECOGNIZED USB DEVICE."

I've never installed the Sony S/W, and hope to not have to.

Any ideas?

Andy
Not sure if you were already able to fix your problem, but I remember I had a similar issue under Windows Vista a couple of months ago where it would not recognize most of my USB devices anymore (like Flash sticks). What happened was that the inf file responsible for detecting mass storage devices (C:\Windows\inf\usbstor.inf) got corrupted. I had to replace it with a good one to make it work again.
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Old 06-23-2008, 03:54 PM   #8
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Lightbulb solution

I had the same problem. Have a solution on my blog!

Check it out:

http://sergcomments.blogspot.com/200...s-problem.html

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Old 06-23-2008, 05:16 PM   #9
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Interesting find Serg! One worth clipping into Evernote! Thanks.
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Old 09-19-2008, 11:19 AM   #10
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500 drive letter?

I am running XP Pro SP3, and am pretty fluent in computereeze. (I manage our network, etc.)

I have been using the connect software without too much difficulty. It "sees" and communicates with my 500 fine, but when I look in "My Computer" or computer management, the reader isn't listed with a drive letter. I've got LOTS of available drive letters, the device manager says the reader is working properly, but I don't seem to be able to access the device directly from any Windows location.
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Old 09-19-2008, 01:16 PM   #11
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Quote:
Originally Posted by taildragger-j3 View Post
I am running XP Pro SP3, and am pretty fluent in computereeze. (I manage our network, etc.)

I have been using the connect software without too much difficulty. It "sees" and communicates with my 500 fine, but when I look in "My Computer" or computer management, the reader isn't listed with a drive letter. I've got LOTS of available drive letters, the device manager says the reader is working properly, but I don't seem to be able to access the device directly from any Windows location.
The PRS-500 does not mount as a "drive" (unlike the 505, which does). It's only visible to applications like "Connect" or "Calibre".
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Old 09-21-2008, 03:23 AM   #12
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Quote:
Originally Posted by HarryT View Post
The PRS-500 does not mount as a "drive" (unlike the 505, which does). It's only visible to applications like "Connect" or "Calibre".

But 505 he talks about does
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Old 09-21-2008, 03:28 AM   #13
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No, he's talking about a 500:

Quote:
It "sees" and communicates with my 500 fine, but when I look in "My Computer" or computer management, the reader isn't listed with a drive letter.
This is not the poster who started the original thread, which is indeed about a 505.
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Old 09-26-2008, 10:34 AM   #14
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The PRS-500 does not mount as a "drive" (unlike the 505, which does). It's only visible to applications like "Connect" or "Calibre".
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Thanks Harry. That explains my dilemma. I'd like to be able to view it as a drive, but it's not a big deal.

David
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Old 09-28-2008, 03:55 PM   #15
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Quote:
Originally Posted by recycledelectron View Post
When I first got my PRS-505, it worked as a card reader on every PC I tried it on. Lately, it has been an "UNRECOGNIZED USB DEVICE."
Check your usb cable.

I got the same error when using a retractable USB cable (used for my Blackberry etc) and had no probs when I switched to an ordinary usb cable.
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