My device will not start. I can't use it.

1st You download Webcam Driver.
My logitech C120 stops showing image at every reinstall and reboot
After this install the Webcam driver in the system.
Installation of Webcam Driver
Go to the control panel
Click on the System Icon
Click on the Hardware Tab
Click on the Device Manager s
Select the Unknown Device or printer device where yellow Question Marks sign on it.
Right click on it and uninstall it.
After this go to the top of the device manager and click on scan for hardware changes.
Driver installation Wizard start.
Brows Your Driver from the Hard Disk and click on next.
Driver will be install.

go to the Sandisk web site and down load the drivers from there

Hi there

When you say the screen goes black even after disconnecting the device from computer it could be an issue with the firmware.
It might need to have updated firmware. To get the updated firmware please go www.sandisk.com.

Where you can get the latest firmware for your model.
*** Make sure when you update the firmware keep the device in MSC mode.

Here is the link for updating the firmware:

http://kb.sandisk.com/app/answers/detail/a_id/306
Kindly revert for further clarifications....

Hello there.Try restarting your computer then once windows has started plug you MP3 player in then go to My computer and click on the icon or drive that your device is plugged in.You should now be able to get in the device..

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

sounds like a firmware program problem and will have to be replaced. You could download an updated firmware but you will have to get a pc connection. 
After your device is plugged in, are you able to go to  "my computer" and see a drive folder that has your device on it.

What I would recommend you to do is to make sure that your device is under MTP mode instead of MSC...to do that go under menu,setting, usb and then there should the two mode listed there...then you want to plug your device in the back of your computer..not in the front..tghat is very important....once you do that..open up your windows media player...click on your start thee sync panel..if your device is recognize properly it will be showing there on the right side..and if its not listed properly, it will say connect a device..if thats the case..click on your start menu right click on computer and then click on propetties, click under hardware and then device manager..your device should be showing there...check under disk drives to see if your device is showing there and if it doesnt you want to right click and hit uninstall...we dont want your device to be under disk drive ..we want it to be under windows portable device...once you uninstall it...go to http://www.sandisk.com/DriverDownload/index.asp and find the driver for your device..and then connecct the device on the back of your computer...it should work properly..if you are still having any problems..let me know..i would be more than happy to assist you..
Please rate accordingly
Thank you
Computerrep

What I would recommend you to do is to make sure that your device is under MTP mode instead of MSC...to do that go under menu,setting, usb and then there should the two mode listed there...then you want to plug your device in the back of your computer..not in the front..tghat is very important....once you do that..open up your windows media player...click on your start thee sync panel..if your device is recognize properly it will be showing there on the right side..and if its not listed properly, it will say connect a device..if thats the case..click on your start menu right click on computer and then click on propetties, click under hardware and then device manager..your device should be showing there...check under disk drives to see if your device is showing there and if it doesnt you want to right click and hit uninstall...we dont want your device to be under disk drive ..we want it to be under windows portable device...once you uninstall it...go to http://www.sandisk.com/DriverDownload/index.asp and find the driver for your device..and then connecct the device on the back of your computer...it should work properly..if you are still having any problems..let me know..i would be more than happy to assist you..
Please rate accordingly
Thank you
Computerrep

What I would recommend you to do is to make sure that your device is under MTP mode instead of MSC...to do that go under menu,setting, usb and then there should the two mode listed there...then you want to plug your device in the back of your computer..not in the front..tghat is very important....once you do that..open up your windows media player...click on your start thee sync panel..if your device is recognize properly it will be showing there on the right side..and if its not listed properly, it will say connect a device..if thats the case..click on your start menu right click on computer and then click on propetties, click under hardware and then device manager..your device should be showing there...check under disk drives to see if your device is showing there and if it doesnt you want to right click and hit uninstall...we dont want your device to be under disk drive ..we want it to be under windows portable device...once you uninstall it...go to http://www.sandisk.com/DriverDownload/index.asp and find the driver for your device..and then connecct the device on the back of your computer...it should work properly..if you are still having any problems..let me know..i would be more than happy to assist you..
Please rate accordingly
Thank you
Computerrep

do one thing u r soft ware totaly adjuest and formate t u problem will be clear its not working the usb be charge set change it ofter it work ok

1.to switch the device to recovery mode turn the hold switch to the locked position. hold in the record button and plug the device in. do not let go of the record button ubtill you see a 16MB partition show up

2.when you got the 16 partition copy a new main image file into it
here are soem diffrent types of them :p
AMERICAS - 01.02.23a for Americas

EUROPE (No FM) - 01.02.23e for Europe without FM

EUROPE (FM) - 01.02.23f for Europe with FM

PACIFIC - 01.02.23p for Pacific

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download from : http://forums.sandisk.com/sansa/board/message?board.id=e200&thread.id=10356

when you downloaded and copyed the main file you should make just an emty doc named : sansa.fmt
no more in that one just move that doc to recovery disk to
hopes it works... a tips are this site http://forums.sandisk.com/sansa/board?board.id=e200
they got many good guids for stuffs like this