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Usb device not recognized

Hi my usb device is not recognized, i just used it but when i use it again,, it was not recognized,..
i tried different computers but the result is still the same,..
need help!please!

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Hi i had a similar problem but mine was with a new HDD but you could try it and see if it helps at all:

Try looking for the drive in the "Disk Management".
Right click on "My Computer" or "Computer" and select "Manage" then select the "Disk Management" item.

If you can see the drive, but there is no drive letter assigned, you may need to format it for your operating system or create an accessible partition on the drive. You can access all these options by right clicking on the drive from the "disk management" screen that you should be on.

mine needed to be initialized (by right clicking on it) and then i formated it

Good Luck!

Posted on Oct 26, 2008

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Fix hard disk


with the device plugged in, open your device manager. The device should show a yellow exclamation mark next to it. Select it and delete it.
Unplug the device.
Power the computer completely off.
Plug the device into a different USB port (one you know works)
Boot it back up
If this doesn't fix it, repeat the process a few times with different ports and also using a different USB cable, if you have one.

If this still doesn't work, the troubleshooting gets significantly more complex.

Oct 22, 2013 | Transcend StoreJet Hard Drives

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My computer doesn't recognize my dane-elec 8gb usb stick , although other usb devices do work.


1. Try a different USB port. If other ports recognize it, then the original port is fried. 2. Try a different computer. If the other computer does not recognize it, then your flash drive is damaged.

Good Luck!

Aug 19, 2011 | Dane-Elec DaneElec 4GB USB Drive Copper...

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When ever I plug it in it just gives me the "A


Hi and welcome to fixya,

Try using a different USB cable or different usb port.

Hope this helps,
levibit

Jan 17, 2011 | Western Digital My Book Essential 1TB...

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Hi, I use this HD for all of my photos and that is it nothing more. Last week I used my external, all was well. Last night I tried to upload photos from my wedding over the weekend to my Mac and the...


An external storage-device has four major components:

* the USB cable

* the power-adapter

* the disk-drive inside the enclosure

* the USB-to-disk-drive adapter inside the enclosure.

One of these components has failed.

Try a different USB cable.

Try connecting to a different USB port on your computer.

Try connecting to a USB port on a different computer.

Take a "multi-meter" and measure both the voltage and amperage output from the AC adapter, and compare with the specifications on the label on the adapter.

Open the enclosure, and remove the disk-drive, and then connect it as a "slave" disk-drive in a desktop computer, to see if it works at all.

Purchase a new, compatible, disk-drive, and install it in the enclosure, to "revive" your external storage device.

Get the part-number and serial-number from the label on your disk-drive, and access the manufacturer's web-site, and use "check warranty status", to see if they will replace the device, at minimal cost to you.

There exist commercial "data recovery" services that can try to repair your device, just long-enough to rescue and copy your files. For example, see: https://services.seagate.com/index.aspx?lng=en-US for a "no data - no charge" guarantee.

Dec 13, 2010 | LaCie (300740) 160 GB Hard Drive

1 Answer

Hi I have a macbook and the 500 gb lacie hd when I connect the usb to the port, the macbook does not recognize the source. I have used it previously and it has worked and I can't seem to get it working...


An external storage-device has four major components:

* the USB cable

* the power-adapter

* the disk-drive inside the enclosure

* the USB-to-disk-drive adapter inside the enclosure.

One of these components has failed.

Try a different USB cable.

Try connecting to a different USB port on your computer.

Try connecting to a USB port on a different computer.

Take a "multi-meter" and measure both the voltage and amperage output from the AC adapter, and compare with the specifications on the label on the adapter.

Open the enclosure, and remove the disk-drive, and then connect it as a "slave" disk-drive in a desktop computer, to see if it works at all.

Purchase a new, compatible, disk-drive, and install it in the enclosure, to "revive" your external storage device.

Get the part-number and serial-number from the label on your disk-drive, and access the manufacturer's web-site, and use "check warranty status", to see if they will replace the device, at minimal cost to you.

There exist commercial "data recovery" services that can try to repair your device, just long-enough to rescue and copy your files. For example, see: https://services.seagate.com/index.aspx?lng=en-US for a "no data - no charge" guarantee.

Dec 12, 2010 | LaCie 500GB d2 Quadra 500 GB USB 2.0 Hard...

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MY WD can't recognize by my pc but last week i use it but there no problem but when i plug it again today in my pc the book are not be read and theres no icon that can be seen in the HARD DISK DRIVERS BUT...


Device Manager only says that the disk is getting AC power, and that the "data" cable is connected, and that Windows has recognized the specific device-information (that it is a disk-drive, and that the capacity of the disk-drive has been recognized).
Device Manager does not say that the "spinning" part of the disk-drive is still spinning, nor that there are any I/O errors (trying writing with a pen onto greased paper -- not everything you write can be read).

Try connecting the MyBook to a different USB port on your computer.

Try connecting the MyBook to a different computer.
If it still is not "readable", then you have a few options:

* if the warranty still is valid, exercise the warranty, to get it repaired/replaced,
* disassemble the case, disconnect the disk-drive from the USB-to-disk-drive adapter, and connect the disk-drive as a "slave" drive in some desktop computer, to see if the USB-to-disk-drive adapter has failed
* buy a replacement disk-drive, connect it to that USB-to-disk-drive adapter, and close the case, to create a "new" external disk-drive.

Oct 24, 2010 | Western Digital My Book Essential 1TB...

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Compaq presario M2202AP doesnt recognize WD 3200 external usb drive. I cant find the download site for the corresponding usb hard drive. ...


Hi You can download driver from below link. Click here Install driver then check. Also follow below if still not recognize. First make sure usb cable connected to harddrive is working fine. try it in different usb ports. Press windows key +R key so you can see run then type in run "devmgmt.msc" then press ok so you can see device manager uninstall all usb drivers then it automatic install usb drivers. then check. Also you need to change registry for that type in run "regedit" then press ok then you can see registry editor then locate below key. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11 CE-BFC1-08002BE10318} And remove upper filter and lower filter.Then restart computer then check. Try your harddrive in different computer if it is not recognized on another computer too then your harddrive has internal issue.
Let me know if you need further assistance. Thanks for using FixYa

Oct 13, 2010 | Western Digital Passport 320GB External...

1 Answer

My sata external usb western digital 320 gb drive only shows up as an unknown USB device. Is there any way to get my computer to recognize it. I have a laptop using windows xp. Ive tried unplugging...


First make sure usb cable connected to harddrive is working fine.
try it in different usb ports.
Press windows key +R key so you can see run then type in run "devmgmt.msc" then press ok so you can see device manager uninstall all usb drivers then it automatic install usb drivers.
then check.
Also you need to change registry for that type in run "regedit" then press ok then you can see registry editor then locate below key.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11­CE-BFC1-08002BE10318}
And remove upper filter and lower filter.Then restart computer then check.
If your harddrive still not recognized then you need to repair your harddrive.Try your harddrive in different computer if it is not recognized on another computer then your harddrive has internal issue.

Let me know if you need further assistance.
Thanks for using FixYa

Jun 25, 2010 | Western Digital 320GB MyBook External USB...

1 Answer

WD Passport appear as an unknown device


try it again, after going to wd dot com, and getting and installing a new set of drivers..

Oct 13, 2008 | Western Digital Hard Drives

1 Answer

Hard drive not being recognized


dear ramroot


enter device manager by type devmgmt.msc, select universal serial bus (USB), you can see what problem at USB, right click to conflict port delete the port who's conflict.
restart your computer.


trying to connect your ext. Harddisk again



oke



cropp

Mar 17, 2008 | Seagate (ST3160827AS) 160 GB Hard Drive

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