Computer will not recognize mp3 player, device doesn't light up

what is the device and operating system you using

Hi Alan
Try this solution to your problem.
Go to Device Manager
To get to Device Manager you will:
Right click on My Computer>Properties>click the Hardware Tab>Device Manager.
After you are in Device Manager look for your MP3 player or Unit.
Here you should see no "Yellow" exclamation points.
If you do they they are telling you that you have a device conflict.
If you currently have your unit plugged in, you may notice the "unknown device" which would be your Player or Unit.
If you unit has an exclamation point by it, then you will need to click on it and delete it.
After you remove all devices with conflicts then click on refresh and search again for your MP3 player/Device.
The computer should install your device this time and solve your problem with connection of the MP3 player/Device.
Please take time to rate me.
Bud

Have you tried restarting your device by removing the battery? Also if you are running vista, you may need to download the driver files from the manufacturer's website.

replace the usb connector then tried to hooked up to the other usb port.

Hi lilrusty2fw...

Go to Device Manager
To get to Device Manager you will:
Right click on My Computer>Properties>click the Hardware Tab>Device Manager.
After you are in Device Manager look for your MP3 player or Unit.
Here you should see no "Yellow" exclamation points.
If you do they they are telling you that you have a device conflict.
If you currnetly have your unit plugged in, you may notice the "unknown device" which would be your Player or Unit.
If you unit has an exclamation point by it, then you will need to click on it and delete it.
After you remove all devices with conflicts then click on refresh and search again for your MP3 player/Device.
The computer should install your device this time and solve your problem with connection of the MP3 player/Device.
Please take time to rate me thumbs up.

One issue that people experience with the Sansa Fuze player is that the screen turns white when they are trying to use it. If you experience this common Sansa Fuze MP3 player repair issue, you need to reset your player. Hold down the "Play" and "Power" buttons for about 20 seconds. The player should automatically reset.
MP3 Player Freezes

Another issue is that the player freezes. You may see lights on the player, but it won't do anything. Follow the below steps to correct this issue:

1. Use the above steps to perform a hard reset.

2. Turn the player back on, and slide the "Power" button upward.

3. Use the USB cord that came with your player, and connect it to your computer. Only connect your player directly to the computer. Don't connect it to a USB hub.

4. See if your computer recognizes that a device was connected to it. Or, look in "Devices and Printers" folder, and see if the device shows up in it.

If your device doesn't reset, and the computer doesn't recognize it, contact SanDisk for additional assistance. Or, you can attempt to repair the device yourself.
Repairing Internal Components

If your Sansa Fuze player is out of warranty, you can attempt to repair internal components. This is an "enter at your own risk" solution, but you may be able to fix the issue. If it doesn't work, or if you damage another component, you will most likely need to get a new player.

1. Shut off the device.

2. If you don't have one, purchase a case opener tool. This is a tool with an extremely small head that is used specifically for opening up small devices.

3. Place the head of the tool in the seam of the device, and rise up the faceplate. Do not do this forcibly, or you'll break the ribbon cable connected to it.

4. Remove the ribbon cable from the faceplate.

5. Examine the battery cable. If this connection is loose, your Fuze player won't turn on. Plug the connection firmly into the port.

6. Check the LCD screen connection. A loose connection here means that you can't see anything on your screen. Disconnect the cable from the port, and reconnect it.

7. Reattach the cable to the faceplate, and reattach the faceplate. Turn the device back on.

These Sansa Fuze MP3 player repair suggestions may not fix all issues. If your player is still not working properly, either take it back to the place where you bought it, or contact SanDisk for additional help.

References

Fixya.com, http://www.fixya.com/support/t4267400-sandisk_fuze_4gb_locked_lights_will_not

SanDisk, http://www.sandisk.com/products/sansa-music-and-video-players/sandisk-sansa-fuze

On the MP3 player itself, go to Setup > System > put the USB mode to MSC.

Reconnect the MP3 player to your computer, it should appear as a 'Removable Disk' drive under 'My Computer'.

If that doesn't resolve and you still get the 'USB Device is corrupt', try replacing the USB cable.

Try disabling your antivirus before connecting the device. Most antivirus prevents driver installation from some external devices. If that doesn't work, enable your antivirus and run a full scan on all your drives. Your next option might be to return it for a refund or replacement

Is the mp3 player in question an iPod?

Good morning, afternoon, evening or night; whatever time of day you are viewing this solution post. Thank you for choosing FixYa to assist you. Your computer is not recognizing your Archos Vision A14VG Digital Media Player? The computer should be able to recognize it because your digital media player is compatible with the three major operating systems: Windows, Mac and Linux. Maybe a Firmware or driver update will help.

1. First, make sure your laptop has USB 2.0 hi-speed ports installed on it (If you are not sure if these are installed on your laptop, check your laptop's user manual).
2. Connect your Archos to your laptop.
3. On your laptop, go into Device Manager and expand the Universal Serial Bus Controllers group. Double click each device in that group until you find your digital media player.
4. Update the driver.
5. If it doesn't need an update, click try uninstalling the driver then reinstall it again.

If the computer still doesn't recognize your device, Try these websites to see if the device may need a firmware or driver update from there.

http://driverwhiz.com/drivers-en?brand=Archos&logo=Archos&subid=1001-us-en-10000048213&gclid=COOT2e-vgakCFYg32g but with with with oduyB-Sw

http://www.easydriverpro.com/lpd/drivers/drivers-en.php?sr=1&ci=500&agid=1349&ad=5825&kid=1349&gclid=COfRup-wgakCFcPt7QodeUzXTw

If your computer is still not recognizing it, try connecting your device to a desktop PC. If the desktop PC recognizes your device, then the problem is coming from the USB ports on your laptop. They may not have the amount of power needed for the device to connect to your laptop. If the PC desktop doesn't recognize the device, then the problem is that one of the drivers in the Archos is defective (not working anymore). Once that happens, the only way the device can work again is if the defective driver gets replaced. If your warranty for the product is still in effect, send the product back to its manufactuer and have them look at it. I hope this is just a driver updating issue. Thank you for choosing FixYa to assist you with your problem. Have a good day evening or night; whatever time of day you are viewing this.