USB not getting recognized

My computer will not recognize my Sansa sandisk MP3 player. I tried to reset it, and when I get the "Please connect USB" message, it still won't recognize it.

sandisk 8.0 gb

check usb cable and make sure that the cable is connected properly .
Try connect to other usb port .

Hope it helps

Sansa c200 series – Computer/OS Not Recognizing
Connect the device to the PC in MSC Mode
View/c200: Turn on then press and hold the rewind button while plugging to the PC
If that fails, unplug the Sansa from the computer. Uninstall all the Sansa software in the add/remove programs section of Control Panel. Reinstall the clean version of the software from Sandisk’s website – make sure you get the files for the c200 series. Then replug the Sansa and try again. The root of the problem is that Sansa has one set of drivers and Windows has another. If you plug the mp3 player into the computer before installing the Sansa drivers, the Windows drivers will trump the Sansa’s.
Here is a helpful link from Sandisk on the problem with extra information on Vista operating systems:
http://kb.sandisk.com/cgi-bin/sandisk_en.cfg/php/enduser/std_adp.php?p_faqid=42&p_created=1221328944&p_sid=8VPwlRmj&p_brand=sansa&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NzQsNzQmcF9wcm9kcz00JnBfY2F0cz0mcF9wdj0xLjQmcF9jdj0mcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1jMjAw&p_li=&p_topview=1

-Tha Mp3 Doctor

I have the same problems and did the same things you did until I update the Windows Media Player to 10. It works fine now.

Press and hold the lower volume button and plug it in to the computer simultaneously and keep holding the minus button until a box appears where the message of usb device malfunctioned and click on it. Then follow the instructions and it should be recognized.

might be the USB drive. try putting it in the other port (if you have a desktop, you should have two ports. If you have a laptop, try it on a friend's computer).

Get a USB cord and connect it to the computer. It will automatically charge with no software installed on your computer.

try going to the settings and change the setting from MTP to MSC

Update your USB drivers?

You could try putting the Sansa's in MSC mode.
Depending on your Firmware there will be a USB option under settings (Under USB it might be on Auto just select MSC)
OR you will need to
1)have the player on (but not plugged in)
2)push the HOLD switch tot he right (towards the REC button [see orange in the hold slot]
3)HOLD DOWN the |<< rewind button (keep this held down)
4)plug the cable into the Sansa (assuming the other end is in the USB port)
Wait till you hear it detect it..

If it still does not..

CHECK the Device Manager to SEE if their are any unknown devices under USB unplug the Sansa
Delete the unknown and try steps 1 thru 4 again.
If you do not know how to get to Device Manager then you will need the help of someone who knows these types of things to show you or look this up on the internet.