I couldn't find Sansa on my computer when I connect with USB cable!

Connect to supplies USB cable to your MP3 player and connect the other end to the USB port on your computer. The computer will see the MP3 player as an external storage device, you can then select the mp3 music files you want to delete (they may be in a music folder) then press the Delete key on your computer just like any unwanted files on your computer.

Hello,

When you're able to view the menus of the player, look in the manual on page 30 = page 31 of the pdf file for the USB connection mode on your player:
Settings
USB > Auto Detect
> MSC
M200 series manual in pdf format:
http://mp3support.sandisk.com/downloads/um/sansa-m200-um.pdf
With Windows Media Player 11 under Vista, the player should be
recognized as a media device in this Microsoft Media Player. Transfers can be made in MTP mode (Media Transfer Protocol) using WMP 11: USB mode should be in Auto Detect.
In Autodetect mode files on the player can also be viewed in the Explorer mode under My Computer, seeing the player as an external flash drive.
In WMP11 use Library and Sync mode for creating playlists and synchronizing music. More about how to use WMP11, see the help items in the player (click on e.g. Library or Sync etc.) or go to the Microsoft site:
http://www.microsoft.com/windows/windowsmedia/player/11/using.mspx


When USB mode is set to MSC mode (Mass Storage Class) the player can only be viewed in the Explorer under My Computer.


More online support for the Sandisk M230 under M200 series players.
Main main support link:
http://kb.sandisk.com/app/answers/detail/a_id/4487#m200
Update page for the players' firmware using the Sansa Firmware Updater:
http://kb.sandisk.com/app/answers/detail/a_id/1107/kw/updater/p/555%2C662%2C670%2C677/r_id/101834
Help links for the M200 series are also available on Sansa Forums:
http://forums.sandisk.com/sansa/board?board.id=m200

When needing more help from this side, don't hesitate to post another comment in this question.

To Sansa m200 series manual in pdf format with this link:
http://mp3support.sandisk.com/downloads/um/sansa-m200-um.pdf

Use the provided USB cable for connection.
For transferring music to the player you can use the next software.
Windows Media Player; how to use WMP see:
http://kb.sandisk.com/app/answers/detail/a_id/389

change your connection settings . Go to settings>PC connections> select mass storage.

SanDisk tech support recommends formatting the m200 series in both MSC and MTP modes to completely clear out all work areas,"fragments" and residual data. The m200 has a very basic Operating System that doesn't have a defrag option. According to tech support, the m200 needs formmating occasionally to keep it working smoothly. I learned that formatting will also clear up intermittent hang-ups. I format mine each time I reload it.

Format in MSC Mode


With the m200 not connected to the PC, power it on, press the menu key. Select "Settings", then USB, then MSC.

Connect the m200 to the PC via the USB cable

Right click on the "Start" button.

Left click on "Explore"

Find the m200. It will show as a hard drive, for example: "SANSA M250"


Right click on the m200 device and select "Format"

After formatting is complete, click on the "Safely Remove Hardware" icon on the System Tray and stop the device

Disconnect the m200 from the PC.


Format in MTP Mode


With the m200 not connected to the PC, power it on, press the menu key. Select "Settings", then USB, then Auto Detect.

Connect the m200 to the PC via the USB cable.

Right click on the "Start" button.

Left click on "Explore"

Find the m200. This time it will not show as a hard drive but as a music device, for example: "SanDisk Sansa m250"Note there is no drive letter in MTP mode.

Right click on the m200 device and select "Format"

After formatting is complete, disconnect the m200 from the PC. There is no icon to stop the device.

Your m200 device is now formatted and ready to reload.


By the way, MSC mode is mostly for use with other than Windows XP computers. If you are using WinXP and Windows Media Player 10, you might consider using MTP mode and WMP to manage the m200's.

Source: http://forums.sandisk.com


If i was helpful, kindly do Rate!
Regards.

I found this online at www.sandisk.com under warranty and manuals link.
I believe they have an excellent Return Authorization system, that if you truly have trouble with your disk player and it's still under warranty, gather your receipts and get on line to get an RMA. I have successfully returned to disc players that were infact faulty (FAT problems) and received two replacement players. Get on it right away. Look at the manaul online too. IT can be very helpful. I've included the Battery info, and the link for the manual at the end.

Battery
The Sansa
®
Clip player comes with an internal rechargeable battery. To use the player for
the very first time, remember to fully charge the battery. You can charge your Sansa
®
player through the USB port of your computer, a car adapter (not included) USB port, or AC
adapter (not included) USB port.
Charging
To charge the battery, please follow these steps:
1. Connect the larger end of the USB cable into an available USB port on the
computer.
2. Connect the smaller end of the USB cable into the Sansa
®
Clip player.
3. The computer must be on for most USB ports to charge your battery. Your
Sansa
®
will show connected and the yellow charging indicator will appear.
The battery level indicator will blink while charging. You will not be able to
play while connected to the computer USB.
4. To stop recharging, simply disconnect the cable.
The battery can also be charged using an AC adapter (not included) or a car adapter
(not included) and you will be able to play your device while charging with one of the
adapters.
NOTE: Some low-power USB ports may not be able to provide enough charge
power. Also note that the rechargeable batteries are not replaceable.

http://www.sandisk.com/media/175960/clip_um_0608_eng.pdf

pluge the sansa into the usb. go to my computer/computer. look for the sansa icon in that folder. double click, go to music, then right click on the song u want to delete and click delete

http://www.sandisk.com/media/175960/clip_um_0608_eng.pdf

Windows XP SP2
• Windows Media Player v10
• Intel Pentium class PC or higher
• CD-ROM drive
• USB 2.0 port for hi-speed transfers and charging

Make sure HOLD button is not on.

Battery
The Sansa
®
Clip player comes with an internal rechargeable battery. To use the player for
the very first time, remember to fully charge the battery. You can charge your Sansa
®
player through the USB port of your computer, a car adapter (not included) USB port, or AC
adapter (not included) USB port.
Charging
To charge the battery, please follow these steps:
1. Connect the larger end of the USB cable into an available USB port on the
computer.
2. Connect the smaller end of the USB cable into the Sansa
®
Clip player.
3. The computer must be on for most USB ports to charge your battery. Your
Sansa
®
will show connected and the yellow charging indicator will appear.
The battery level indicator will blink while charging. You will not be able to
play while connected to the computer USB.
4. To stop recharging, simply disconnect the cable.
The battery can also be charged using an AC adapter (not included) or a car adapter
(not included) and you will be able to play your device while charging with one of the
adapters.
NOTE: Some low-power USB ports may not be able to provide enough charge
power. Also note that the rechargeable batteries are not replaceable.

its the usb connection you probably connected to hub with bad usb port or needed update usb parameter port

Have you tried removing the battery? Or maybe your battery is low. As well, if your mp3 player isn't turned on when you plug it in, that seems to affect if the computer recognizes it.