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Question about SanDisk Sansa e250 MP3 Player

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Sansa 250e computer recognition issue

I am having issues with computers not recognizing the unit. It usually sees an "unknown USB device." I've had a few times where it recognized the unit and I was able to put music on it etc. I have toggled the USB mode on the unit to the Mass Data setting. Any ideas?

Posted by troubled01 on

  • Anonymous Dec 31, 2007

    My SanDisk Sansa e250 does not regognize the usb port?

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1 Answer

moparman629

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    An expert who has achieved level 1.

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  • 1 Answer

Make sure your using a usb 2.0 port

Posted on Jan 03, 2008

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Driver download

If your computer does not recognize the USB device, first try method 1 to work around this issue. Method 1: Initiate recognition of the USB device by using Device Manager To initiate recognition of the USB device by using Device Manager, follow these steps: Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens. Click to select your computer as the location for the scan. On the Action menu, click Scan for hardware changes. Windows XP recognizes the new device. Close the Device Manager window. If this method resolves the issue, you are finished. If this method does not resolve the issue, go to method 2. Method 2: Disable power management of the USB hub Note If you perform the following procedure, you may also reduce the battery life on a portable computer. Use this method if method 1 does not work. To disable power management of the USB hub, follow these steps: Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens. Expand Universal Serial Bus controllers. Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed. Click the Power Management tab. Click to clear the Allow the computer to turn off this device to save power check box, and then click OK. Repeat steps 3 through 6 for each USB Root Hub in the list. On the Action menu, click Scan for hardware changes. Windows XP recognizes the new device. Close the Device Manager window. If this method does not resolve the issue, go to method 3. Method 3: Restart the computer To initiate recognition of the USB device, first unplug the USB device and restart the computer. Then, wait five to ten seconds before you plug the USB device into the computer or hub. Windows XP recognizes the new device. If this method does not resolve the issue, you might want to review the articles in the "Similar Problems and Solutions" section, or contact Support. For information about how to contact Support, visit the following Microsoft Web site: http://support.microsoft.com/contactus Back to the top ' Give Feedback
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Some USB that are attach to my pc are not recognized.

Method 1: Initiate recognition of the USB device by using Device Manager loadTOCNode(2, 'workaround'); To initiate recognition of the USB device by using Device Manager, follow these steps:
  1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
  2. Click to select your computer as the location for the scan.
  3. On the Action menu, click Scan for hardware changes.

    Windows XP recognizes the new device.
  4. Close the Device Manager window.
If this method resolves the issue, you are finished.

If this method does not resolve the issue, go to method 2. uparrow.gifBack to the top Method 2: Disable power management of the USB hub loadTOCNode(2, 'workaround'); Note If you perform the following procedure, you may also reduce the battery life on a portable computer.

Use this method if method 1 does not work. To disable power management of the USB hub, follow these steps:
  1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
  2. Expand Universal Serial Bus controllers.
  3. Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed.
  4. Click the Power Management tab.
  5. Click to clear the Allow the computer to turn off this device to save power check box, and then click OK.
  6. Repeat steps 3 through 6 for each USB Root Hub in the list.
  7. On the Action menu, click Scan for hardware changes.

    Windows XP recognizes the new device.
  8. Close the Device Manager window.
If this method does not resolve the issue, go to method 3. uparrow.gifBack to the top Method 3: Restart the computer loadTOCNode(2, 'workaround'); To initiate recognition of the USB device, first unplug the USB device and restart the computer. Then, wait five to ten seconds before you plug the USB device into the computer or hub. Windows XP recognizes the new device.
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My external hard drive does not appear in the my computer. i cannot open it and retrieve my file. it is recognized by the usb port but otherwise it is not accesible. i tried connecting it to other computer...

Hi Kuting_Jod, try to look out for a manual and a driver CD in theoriginal package for instructions - how to get your computer to recognizemy hard drive.
I hope i helped!
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Gateway 310 s won't recognize a cd

Hello,
Method 1: Initiate recognition of the USB device by using Device Manager loadTOCNode(2, 'workaround'); To initiate recognition of the USB device by using Device Manager, follow these steps:

1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
2. Click to select your computer as the location for the scan.
3. On the Action menu, click Scan for hardware changes.

Windows XP recognizes the new device.
4. Close the Device Manager window.

If this method resolves the issue, you are finished.

If this method does not resolve the issue, go to method 2.
Method 2: Disable power management of the USB hub loadTOCNode(2, 'workaround'); Note If you perform the following procedure, you may also reduce the battery life on a portable computer.

Use this method if method 1 does not work. To disable power management of the USB hub, follow these steps:

1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
2. Expand Universal Serial Bus controllers.
3. Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed.
4. Click the Power Management tab.
5. Click to clear the Allow the computer to turn off this device to save power check box, and then click OK.
6. Repeat steps 3 through 6 for each USB Root Hub in the list.
7. On the Action menu, click Scan for hardware changes.

Windows XP recognizes the new device.
8. Close the Device Manager window.

If this method does not resolve the issue, go to method 3.

Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
Uninstall all the usb controller from USB controller
and now restart the computer.

If this method does not resolve the issue, go to method 4 .
Method 3: Restart the computer loadTOCNode(2, 'workaround'); To initiate recognition of the USB device, first unplug the USB device and restart the computer. Then, wait five to ten seconds before you plug the USB device into the computer or hub. Windows XP recognizes the new device.

Hope this helps.
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USB port not reconizing

The time delay depends on the following factors:
  • Host controller hardware
  • Attached hubs
  • Attached devices
  • USB driver versions
  • Support for USB 2.0
  • Additional system hardware or configurations that may change the timing

Method 1: Initiate recognition of the USB device by using Device ManagerTo initiate recognition of the USB device by using Device Manager, follow these steps:
  1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
  2. Click to select your computer as the location for the scan.
  3. On the Action menu, click Scan for hardware changes.

    Windows XP recognizes the new device.
  4. Close the Device Manager window.
If this method resolves the issue, you are finished.
Method 2: Restart the computer To initiate recognition of the USB device, first unplug the USB device and restart the computer. Then, wait five to ten seconds before you plug the USB device into the computer or hub. Windows XP recognizes the new device.

If this method does not resolve the issue, you might want to review the articles in the "Similar Problems and Solutions" section, or contact Support. For information about how to contact Support, visit the following Microsoft Web site: http://support.microsoft.com/contactus (http://support.microsoft.com/contactus)
0helpful
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Hi Running WIN XP (32bit) Have just replaced the Motherboard with an ASUS P5E3 Upon boot up, Windows XP dooes not recognise the USB mouse. The mouse is plugged directly into the MoBO's USB port. I...

Method 1: Initiate recognition of the USB device by using Device Manager----To initiate recognition of the USB device by using Device Manager, follow these steps:---
  1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Managerwindow opens.
  2. Click to select your computer as the location for the scan.
  3. On the Action menu, click Scan for hardware changes.

    Windows XP recognizes the new device.
  4. Close the Device Manager window.
If this method resolves the issue, you are finished.

If this method does not resolve the issue, go to method 2. Method 2: Disable power management of the USB hub---Use this method if method 1 does not work. To disable power management of the USB hub, follow these steps:===
  1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Managerwindow opens.
  2. Expand Universal Serial Bus controllers.
  3. Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed.
  4. Click the Power Management tab.
  5. Click to clear the Allow the computer to turn off this device to save power check box, and then click OK.
  6. Repeat steps 3 through 6 for each USB Root Hub in the list.
  7. On the Action menu, click Scan for hardware changes.

    Windows XP recognizes the new device.
  8. Close the Device Manager window.--
If this method does not resolve the issue, go to method 3--- Method 3: Restart the computer---To initiate recognition of the USB device, first unplug the USB device and restart the computer. Then, wait five to ten seconds before you plug the USB device into the computer or hub. Windows XP recognizes the new device.

If this method does not resolve the issue, you might want to review the articles in the "Similar Problems and Solutions" section, or contact Support. For information about how to contact Support, visit the following Microsoft Web site:---- http://support.microsoft.com/contactus
--- This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya



1helpful
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Computer wont recognize Sansa Mp3

There are two connection settings in USB: MTP and MSC. For some reason MTP is the default, but it doesn't connect properly on all computers. Select MSC and plug the player in again, the computer will recognize sansa e250 but not show the driver just yet. It is installing recognition software (just basic drivers - nothing heavy) and it doesnt tell you what its doing until its complete. WAIT FOR IT. Once it is complete you will see both the sansa e250 and the removable memory slot in your "my computer" now you're good to go.
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1answer

No computer recognition

It is not on your computor you have to go to settings on the player scroll down to usb mode and change it there. I did and I still can not get it to be reconized. I am still having trouble get my computor to see it, it just says that it is unknown decive.
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Sansa 260

I'm wondering if its your computer. I would test another usb-connected device (i.e digital camera, USB memory stick etc.) to see if it takes that long to recognize. Also i would check what version of usb you have (ver 1.1 versus 2.0) The speed difference in both initial recognition and file transfer is significant.
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