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USB Flash drive not recognized?!?

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February 29, 2012 1:59:55 PM

A friend of mine brought me her USB flash drive that had ALL of her school work on it from the past 3 semesters...most importantly everything she has done so far this semester. When you plug it in it says "Not Recognized" and I don't really know what to try next. I have tried multiple computers and it is definitely an issue with the flash drive and not the USB ports on the computers. The drive itself doesn't matter, but we really need to find a way to pull her documents off the drive. Any and all help is greatly appreciated.
a c 119 G Storage
February 29, 2012 2:58:09 PM

What brand and model of flash drive is it? What is the computer she waas using it on? Is this a thumb drive?
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February 29, 2012 3:07:27 PM

It is a Sandisk 2GB. She was using it on her office PC, which is a Core i5 machine with 2GB of RAM running Windows XP. I have tried it on 4 other computers (2 running XP, 2 running Windows 7) but it still doesn't recognize it. The computer recognizes that something has been plugged in but it does not show up in Disk management or My Computer. Yes, this is a USB thumb drive.
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a c 119 G Storage
February 29, 2012 3:39:19 PM

The next question is are all of the computers the same versions , 32bit or 64bit? Sorry for all the questions but when there is no direct contact the only info is what is posted so to make a determination all the facts have to be known. There is one more thing and that is when the drive was removed from the office computer was the safely remove drive option used?
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February 29, 2012 4:42:47 PM

inzone said:
The next question is are all of the computers the same versions , 32bit or 64bit? Sorry for all the questions but when there is no direct contact the only info is what is posted so to make a determination all the facts have to be known. There is one more thing and that is when the drive was removed from the office computer was the safely remove drive option used?


One of the Windows 7 machines was x64, the other three were x86 (32 bit). I am not sure if the safely remove option was used before it broke, but now it isn't even an option.
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a c 119 G Storage
February 29, 2012 7:51:46 PM

If the flash drive was written by a 64bit computer then the drive will not be recognized by the 32bit computers. Does the drive work in the office computer where I guessing it was used? Or is that why she brought the drive to you in the first place?
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March 1, 2012 1:03:09 AM

inzone said:
If the flash drive was written by a 64bit computer then the drive will not be recognized by the 32bit computers. Does the drive work in the office computer where I guessing it was used? Or is that why she brought the drive to you in the first place?


Umm...thats not true. My office machine runs 64bit Windows 7 and I have NEVER had a problem with a flash drive not working in 32 bit computers. No, it does not work in the office computer where it was used (32 bit Windows XP), yes, that is why it was brought to me in the first place.
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a c 119 G Storage
March 1, 2012 4:08:23 AM

It is for sure that something has happened to this flash drive either it's defective or something changed the condition of the drive but clearly the computers ackknowledge that something is connected when the drive is pluged in. I'm not certian that this can help but if the partition in the drive has been altered then you may be able to get the data off with this free software.

http://www.cgsecurity.org/wiki/TestDisk
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March 2, 2012 11:11:06 AM

Unfortunately, that software doesn't see the flash drive at all. So, its basically toast then?
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a c 119 G Storage
March 2, 2012 4:03:45 PM

With the fact that there is important files on it I wouldn't give up on it just yet , there has to be a way to get those files off the usb stick.
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March 12, 2012 1:39:43 AM

Best answer selected by chmcke01.
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Best solution

March 12, 2012 1:49:56 AM

inzone said:
With the fact that there is important files on it I wouldn't give up on it just yet , there has to be a way to get those files off the usb stick.


I took it apart and it turned out that the connections were just loose. I managed to hold the connections together long enough to copy everything over.
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a b G Storage
January 24, 2013 3:18:08 PM

chmcke01 said:
I took it apart and it turned out that the connections were just loose. I managed to hold the connections together long enough to copy everything over.


How did you manage to hold the connectors together?
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February 10, 2013 2:34:45 AM

That's good that you were able to fix the flash drive yourself.

Just to attempt to post diagnose the drive - the broken/bent connections disconnected power so the drive was never being turned on. The PC was still able to recognize a usb device was plugged in by means of the pull-up resistor on the D+/D- lines (hardware) of the flash drive.

The flash drive was not able to be enumerated (as it wasn't being properly powered), which is why it did not show up in Disk Management or My Computer.

Luckily you were able to fix the drive yourself and pull the data off the drive. If however you couldn't, there is always the option of using a flash drive data recovery company

fixmyflashdrive.com
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February 26, 2013 5:18:44 AM

Consult a specialist or data recovery company.
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August 3, 2013 5:38:38 AM

[The USB Flash Drive has bee encrypted from another device such as a mobile laptop or tablet. The USB flash drive needs to be first decrypted from the device in which it was encrypted.
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August 3, 2013 3:31:01 PM

I thought that I have already posted my reply, but I see that I have not because of the member sign up process. The solution to your problem is very simple...very simple indeed!

The reason why your USB flash drive is not recognized is because the USB flash drive has been previously encrypted on another device. In essence, the USB flash drive has been password protected and then some. You must insert the flash drive in the device in which it was encrypted, enter your encryption password, and deencrypt it.
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August 27, 2013 9:27:14 PM

You can try this app to assign a drive letter.

http://seeme.cogit.net/

chmcke01 said:
It is a Sandisk 2GB. She was using it on her office PC, which is a Core i5 machine with 2GB of RAM running Windows XP. I have tried it on 4 other computers (2 running XP, 2 running Windows 7) but it still doesn't recognize it. The computer recognizes that something has been plugged in but it does not show up in Disk management or My Computer. Yes, this is a USB thumb drive.

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February 24, 2014 4:48:18 PM

This worked for me, but think it's not a definite fix. 1) Plugged in bad drive. Msg: driver not load successfully. Drive not recognized. 2) Unplugged bad drive and plugged in a good drive. Msg: driver load successfully. Drive recognized. 3) In another usb slot, plugged in bad drive (leaving good drive in place). Both drives were recognized and could copy data from bad drive to good.

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April 9, 2014 1:28:16 AM

In you case, you have two ways to repair this USB flash drive.
1). Change another USB interface or cable and check whether the USB flash drive is recognizable.
Sometimes, it may be also caused by damaged USB interface. So, open this USB flash drive and change another USB interface or cable. And then, you can try to restore all wanted documents back.
2). Ask some professional drive shop for help.
If your friend really needs to rescue this USB flash drive, you can take it to some professional fixing shops and see whether it is repairable. Just find a reliable shop.
Resources:
http://www.wikihow.com/Repair-a-USB-Flash-Drive
http://www.ehow.com/how_5913418_fix-drive-not-recognize...
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May 25, 2014 12:14:42 AM

That's quite tough to tell the exact reason and you can try to find an expert to exam your drive.
If you need get the information on it, you should not now use it to store new things.
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