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USB Flash drive no longer recognized in any computer

My CPA's flash drive (8 Gb Sandisk Cruzer) was working fine until a couple of days ago. After trying to see it in 3 computers I opened the case to see if there were any broken solders or burned chips - negative on both. I uninstalled all the root hubs and rebooted with the flash drive inserted. Windows re-installed all the hubs but still doesn't see the drive. Any ideas?
Thanks

Lee W, MVP

Flash drives can go bad. Go to your backups. Don't have them? You can try data recovery but I don't think the odds will be very good to recover (though I've never tried).

And you can try some of the solutions here:
https://www.google.com/search?q=flash+drive+data+recovery

ukjerry2

Broken solders are the most common cause. The breaks can be hairline or smaller - did you examine with a strong magnifying glass?

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nobus

it looks like a bad one- but you can try these; EZrecover has "repaired" a couple drives for me
http://www.handyrecovery.com/ handy recovery
http://drivers.softpedia.com/get/Other-DRIVERS-TOOLS/Others/Sony-EzRecover.shtml EZrecover
http://www.snapfiles.com/download/dlsmartrecovery.html usb key recovery

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ASKER

Sorry for the delay. Just found all the notifications in my junk mail. Data was recovered by Sandisk recommended LC Technology.

nobus

don't forget to close this Q then !

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Sent flash drive out to lab for successful recovery. None of the suggestions worked.