Not able to switch on the SanDisk Sansa Express player

Hope this helps. See the section about the hot fix first----- If you are using Windows XP: you need the following. Windows XP SP2 or higher Windows Media Player 10 or higher Download and install the latest Windows Media Player if it's not installed. If you are using Windows Vista: If the player is seen in My Computer when using MTP mode, but not showing in Windows Media Player. Download the hotfix from-->>> http://support.microsoft.com/kb/939211. Run the hotfix. Refresh the players driver Connect the Sansa player to the PC The screen on your player should turn on, show 'Connected' and indicate the battery charging or full. If the player does not turn on try other USB ports or on another computer if one is readily available. Ensure you are connecting directly to the computer USB port and not to a USB hub. - If there is nothing showing on the screen and the player does show up in as a storage device in an explorer window, then the screen is just not working. If you receive the error "USB Device Not Recognized" on the computer, the player is most likely failed. Additional troubleshooting is unlikely to correct the problem. Check under Device Manager 1. Right-click My Computer, and select Manage. 2. Click Device Manager on the left pane. NOTE: Sansa MP3 Players can connect to your computer in MSC or MTP mode. Exceptions are Sansa Connect and Sansa Express which only use MTP mode. MTP mode is the recommended and default method for Sansa Players when used with Windows OS. The Sansa player will show up on Device Manager's right pane as: 1. USB Mass Storage device (if the player is set to MSC) 2. Portable Device (if the player is set to MTP mode) If there is a yellow exclamation point (!) or question mark (?) beside the device, try to refresh the drivers. Refresh the drivers 1. Right-click the entry with the error mark, select Uninstall. 2. On the top menu, click Action then select Scan for hardware changes. NOTE: If a device with yellow exclamation point (!) continually appears and disappears, then the player is most likely failed. Additional troubleshooting is unlikely to correct the problem. Connect using MSC mode Connecting in MSC mode will help determine if there is a problem with MTP mode or with the Auto Detect mode feature of the player. You can use Forced MSC mode or switch the player settings to MSC. Instructions to connect in Forced MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/61 Instructions to switch player to MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/207 If the player is detected in MSC mode but not when set to MTP mode, try to update or reinstall the Sansa firmware NOTE: Sansa Express and Sansa Connect do not have MSC mode. For Sansa Connect you can try reinstalling the firmware using the Connect Recovery Mode. Additional troubleshooting notes: If you have replaced the Sansa Player and you still have problems getting it to recognize in the computer, then you may need to try some additional troubleshooting. - Try connecting on another computer. - Try using a different USB cable - Try connecting to the back USB ports which may supply better power. - If only MTP mode is not working, try reinstalling Windows Media Player For Windows XP try also download and install the MTP Porting Kit ......

Hope this helps. See the section about the hot fix first----- If you are using Windows XP: you need the following. Windows XP SP2 or higher Windows Media Player 10 or higher Download and install the latest Windows Media Player if it's not installed. If you are using Windows Vista: If the player is seen in My Computer when using MTP mode, but not showing in Windows Media Player. Download the hotfix from-->>> http://support.microsoft.com/kb/939211. Run the hotfix. Refresh the players driver Connect the Sansa player to the PC The screen on your player should turn on, show 'Connected' and indicate the battery charging or full. If the player does not turn on try other USB ports or on another computer if one is readily available. Ensure you are connecting directly to the computer USB port and not to a USB hub. - If there is nothing showing on the screen and the player does show up in as a storage device in an explorer window, then the screen is just not working. If you receive the error "USB Device Not Recognized" on the computer, the player is most likely failed. Additional troubleshooting is unlikely to correct the problem. Check under Device Manager 1. Right-click My Computer, and select Manage. 2. Click Device Manager on the left pane. NOTE: Sansa MP3 Players can connect to your computer in MSC or MTP mode. Exceptions are Sansa Connect and Sansa Express which only use MTP mode. MTP mode is the recommended and default method for Sansa Players when used with Windows OS. The Sansa player will show up on Device Manager's right pane as: 1. USB Mass Storage device (if the player is set to MSC) 2. Portable Device (if the player is set to MTP mode) If there is a yellow exclamation point (!) or question mark (?) beside the device, try to refresh the drivers. Refresh the drivers 1. Right-click the entry with the error mark, select Uninstall. 2. On the top menu, click Action then select Scan for hardware changes. NOTE: If a device with yellow exclamation point (!) continually appears and disappears, then the player is most likely failed. Additional troubleshooting is unlikely to correct the problem. Connect using MSC mode Connecting in MSC mode will help determine if there is a problem with MTP mode or with the Auto Detect mode feature of the player. You can use Forced MSC mode or switch the player settings to MSC. Instructions to connect in Forced MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/61 Instructions to switch player to MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/207 If the player is detected in MSC mode but not when set to MTP mode, try to update or reinstall the Sansa firmware NOTE: Sansa Express and Sansa Connect do not have MSC mode. For Sansa Connect you can try reinstalling the firmware using the Connect Recovery Mode. Additional troubleshooting notes: If you have replaced the Sansa Player and you still have problems getting it to recognize in the computer, then you may need to try some additional troubleshooting. - Try connecting on another computer. - Try using a different USB cable - Try connecting to the back USB ports which may supply better power. - If only MTP mode is not working, try reinstalling Windows Media Player For Windows XP try also download and install the MTP Porting Kit ........

See the section about the hot fix first----- If you are using Windows XP: you need the following. Windows XP SP2 or higher Windows Media Player 10 or higher
Download and install the latest Windows Media Player if it's not installed.
If you are using Windows Vista: If the player is seen in My Computer when using MTP mode, but not showing in Windows Media Player. Download the hotfix from-->>> http://support.microsoft.com/kb/939211. Run the hotfix.
Refresh the players driver Connect the Sansa player to the PC The screen on your player should turn on, show 'Connected' and indicate the battery charging or full. If the player does not turn on try other USB ports or on another computer if one is readily available. Ensure you are connecting directly to the computer USB port and not to a USB hub. - If there is nothing showing on the screen and the player does show up in as a storage device in an explorer window, then the screen is just not working.
If you receive the error "USB Device Not Recognized" on the computer, the player is most likely failed. Additional troubleshooting is unlikely to correct the problem. Check under Device Manager 1. Right-click My Computer, and select Manage. 2. Click Device Manager on the left pane.
NOTE: Sansa MP3 Players can connect to your computer in MSC or MTP mode. Exceptions are Sansa Connect and Sansa Express which only use MTP mode. MTP mode is the recommended and default method for Sansa Players when used with Windows OS. The Sansa player will show up on Device Manager's right pane as: 1. USB Mass Storage device (if the player is set to MSC) 2. Portable Device (if the player is set to MTP mode)
If there is a yellow exclamation point (!) or question mark (?) beside the device, try to refresh the drivers. Refresh the drivers 1. Right-click the entry with the error mark, select Uninstall. 2. On the top menu, click Action then select Scan for hardware changes.
NOTE: If a device with yellow exclamation point (!) continually appears and disappears, then the player is most likely failed. Additional troubleshooting is unlikely to correct the problem.
Connect using MSC mode Connecting in MSC mode will help determine if there is a problem with MTP mode or with the Auto Detect mode feature of the player. You can use Forced MSC mode or switch the player settings to MSC.
Instructions to connect in Forced MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/61
Instructions to switch player to MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/207
If the player is detected in MSC mode but not when set to MTP mode, try to update or reinstall the Sansa firmware
NOTE: Sansa Express and Sansa Connect do not have MSC mode. For Sansa Connect you can try reinstalling the firmware using the Connect Recovery Mode.
Additional troubleshooting notes: If you have replaced the Sansa Player and you still have problems getting it to recognize in the computer, then you may need to try some additional troubleshooting. - Try connecting on another computer. - Try using a different USB cable - Try connecting to the back USB ports which may supply better power. - If only MTP mode is not working, try reinstalling Windows Media Player For Windows XP try also download and install the MTP Porting Kit

This may be caused by one of the following:
1. Minimum system requirements were not met.
2. Corrupted drivers.
3. Computer restrictions.
4. Power issue.

To resolve this issue, try the following solutions:

SOLUTION 1 - For brand new player or first time connecting to this computer.

For Windows XP users: verify the following operating system requirements are met.
- Windows XP SP2 or higher
- Windows Media Player 10 or higher

Download and install the latest Windows Media Player if it's not installed.

For Windows Vista users: If the player is seen in My Computer when using MTP mode, but not showing in Windows Media Player.
- Download the hotfix from http://support.microsoft.com/kb/939211.
- Run the hotfix.

For MAC users, see Sansa player not recognized by a MAC OS

NOTE: If you are trying to connect to a Computer at work that is part of a network, there may be user right restrictions that are set to disable access to new hardware or stop any program installations. You may need to check with your IT administrator to see if this is causing the problem.



SOLUTION 2 - Refresh the driver

STEP 1 - Connect the Sansa player to the PC
The screen on your player should turn on, show 'Connected' and indicate the battery charging or full.
- If the player does not turn on try other USB ports or on another computer if one is readily available. Ensure you are connecting directly to the computer USB port and not to a USB hub.
- If there is nothing showing on the screen and the player does show up in as a storage device in an explorer window, then the screen is just not working.

If you receive the error "USB Device Not Recognized" on the computer, the player is most likely failed. Additional troubleshooting is unlikely to correct the problem.


.

STEP 2 - Check under Device Manager
1. Right-click My Computer, and select Manage.

2. Click Device Manager on the left pane.


NOTE: Sansa MP3 Players can connect to your computer in MSC or MTP mode. Exceptions are Sansa Connect and Sansa Express which only use MTP mode. MTP mode is the recommended and default method for Sansa Players when used with Windows OS.

The Sansa player will show up on Device Manager's right pane as:
1. USB Mass Storage device (if the player is set to MSC)
2. Portable Device (if the player is set to MTP mode)

If there is a yellow exclamation point (!) or question mark (?) beside the device, try to refresh the drivers.


STEP 3 - Refresh the drivers
1. Right-click the entry with the error mark, select Uninstall.
2. On the top menu, click Action then select Scan for hardware changes.

NOTE: If a device with yellow exclamation point (!) continually appears and disappears, then the player is most likely failed. Additional troubleshooting is unlikely to correct the problem.



SOLUTION 3 - Connect using MSC mode
Connecting in MSC mode will help determine if there is a problem with MTP mode or with the Auto Detect mode feature of the player. You can use Forced MSC mode or switch the player settings to MSC.

Instructions to connect in Forced MSC mode are listed here:
http://kb.sandisk.com/app/answers/detail/a_id/61

Instructions to switch player to MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/207

If the player is detected in MSC mode but not when set to MTP mode, try to update or reinstall the Sansa firmware

NOTE: Sansa Express and Sansa Connect do not have MSC mode. For Sansa Connect you can try reinstalling the firmware using the Connect Recovery Mode.

Additional troubleshooting notes:
If you have replaced the Sansa Player and you still have problems getting it to recognize in the computer, then you may need to try some additional troubleshooting.
- Try connecting on another computer.
- Try using a different USB cable
- Try connecting to the back USB ports which may supply better power.
- If only MTP mode is not working, try reinstalling Windows Media Player
For Windows XP try also download and install the MTP Porting Kit
for more answers at:
http://www.doremisoft.net/Sansa-Video-Converter-Mac/

or http://kb.sandisk.com/app/answers/list/

This may be caused by one of the following:
1. Minimum system requirements were not met.
2. Corrupted drivers.
3. Computer restrictions.
4. Power issue.
To resolve this issue, try the following solutions:

SOLUTION 1 - For brand new player or first time connecting to this computer.

For Windows XP users: verify the following operating system requirements are met.
- Windows XP SP2 or higher
- Windows Media Player 10 or higher

Download and install the latest Windows Media Player if it's not installed.

For Windows Vista users: If the player is seen in My Computer when using MTP mode, but not showing in Windows Media Player.
- Download the hotfix from http://support.microsoft.com/kb/939211.
- Run the hotfix.

For MAC users, see Sansa player not recognized by a MAC OS

NOTE: If you are trying to connectto a Computer at work that is part of a network, there may be userright restrictions that are set to disable access to new hardware orstop any program installations. You may need to check with your ITadministrator to see if this is causing the problem.



SOLUTION 2 - Refresh the driver

STEP 1 - Connect the Sansa player to the PC
The screen on your player should turn on, show 'Connected' and indicate the battery charging or full.
- If the player does not turn on try other USB ports or on anothercomputer if one is readily available. Ensure you are connectingdirectly to the computer USB port and not to a USB hub.
- If there is nothing showing on the screen and the player does show upin as a storage device in an explorer window, then the screen is justnot working.

If you receive the error "USB Device Not Recognized" on the computer, the player is most likely failed. Additional troubleshooting is unlikely to correct the problem.


.

STEP 2 - Check under Device Manager
1. Right-click My Computer, and select Manage.

2. Click Device Manager on the left pane.


NOTE: Sansa MP3 Players canconnect to your computer in MSC or MTP mode. Exceptions are SansaConnect and Sansa Express which only use MTP mode. MTP mode is therecommended and default method for Sansa Players when used with WindowsOS.

The Sansa player will show up on Device Manager's right pane as:
1. USB Mass Storage device (if the player is set to MSC)
2. Portable Device (if the player is set to MTP mode)

If there is a yellow exclamation point (!) or question mark (?) beside the device, try to refresh the drivers.


STEP 3 - Refresh the drivers
1. Right-click the entry with the error mark, select Uninstall.
2. On the top menu, click Action then select Scan for hardware changes.

NOTE: If a device with yellowexclamation point (!) continually appears and disappears, then theplayer is most likely failed. Additional troubleshooting is unlikely tocorrect the problem.



SOLUTION 3 - Connect using MSC mode
Connecting in MSC mode will help determine if there is a problem withMTP mode or with the Auto Detect mode feature of the player. You canuse Forced MSC mode or switch the player settings to MSC.

Instructions to connect in Forced MSC mode are listed here:
http://kb.sandisk.com/app/answers/detail/a_id/61

Instructions to switch player to MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/207

If the player is detected in MSC mode but not when set to MTP mode, try to update or reinstall the Sansa firmware

NOTE: Sansa Express and SansaConnect do not have MSC mode. For Sansa Connect you can tryreinstalling the firmware using the Connect Recovery Mode.

Additional troubleshooting notes:
If you have replaced the Sansa Player and you still have problemsgetting it to recognize in the computer, then you may need to try someadditional troubleshooting.
- Try connecting on another computer.
- Try using a different USB cable
- Try connecting to the back USB ports which may supply better power.
- If only MTP mode is not working, try reinstalling Windows Media Player
For Windows XP try also download and install the MTP Porting Kit


If u have more questions, u can visit below sites:
http://kb.sandisk.com/app/answers/list/

http://www.doremisoft.net/Sansa-articles/Convert-video-to-Sansa-on-mac-osx/
Good luck.

This may be caused by one of the following:
1. Minimum system requirements were not met.
2. Corrupted drivers.
3. Computer restrictions.
4. Power issue.

To resolve this issue, try the following solutions:

SOLUTION 1 - For brand new player or first time connecting to this computer.

For Windows XP users: verify the following operating system requirements are met.
- Windows XP SP2 or higher
- Windows Media Player 10 or higher

Download and install the latest Windows Media Player if it's not installed.

For Windows Vista users: If the player is seen in My Computer when using MTP mode, but not showing in Windows Media Player.
- Download the hotfix from http://support.microsoft.com/kb/939211.
- Run the hotfix.

For MAC users, see Sansa player not recognized by a MAC OS

NOTE: If you are trying to connect to a Computer at work that is part of a network, there may be user right restrictions that are set to disable access to new hardware or stop any program installations. You may need to check with your IT administrator to see if this is causing the problem.



SOLUTION 2 - Refresh the driver

STEP 1 - Connect the Sansa player to the PC
The screen on your player should turn on, show 'Connected' and indicate the battery charging or full.
- If the player does not turn on try other USB ports or on another computer if one is readily available. Ensure you are connecting directly to the computer USB port and not to a USB hub.
- If there is nothing showing on the screen and the player does show up in as a storage device in an explorer window, then the screen is just not working.

If you receive the error "USB Device Not Recognized" on the computer, the player is most likely failed. Additional troubleshooting is unlikely to correct the problem.


.

STEP 2 - Check under Device Manager
1. Right-click My Computer, and select Manage.

2. Click Device Manager on the left pane.


NOTE: Sansa MP3 Players can connect to your computer in MSC or MTP mode. Exceptions are Sansa Connect and Sansa Express which only use MTP mode. MTP mode is the recommended and default method for Sansa Players when used with Windows OS.

The Sansa player will show up on Device Manager's right pane as:
1. USB Mass Storage device (if the player is set to MSC)
2. Portable Device (if the player is set to MTP mode)

If there is a yellow exclamation point (!) or question mark (?) beside the device, try to refresh the drivers.


STEP 3 - Refresh the drivers
1. Right-click the entry with the error mark, select Uninstall.
2. On the top menu, click Action then select Scan for hardware changes.

NOTE: If a device with yellow exclamation point (!) continually appears and disappears, then the player is most likely failed. Additional troubleshooting is unlikely to correct the problem.



SOLUTION 3 - Connect using MSC mode
Connecting in MSC mode will help determine if there is a problem with MTP mode or with the Auto Detect mode feature of the player. You can use Forced MSC mode or switch the player settings to MSC.

Instructions to connect in Forced MSC mode are listed here:
http://kb.sandisk.com/app/answers/detail/a_id/61

Instructions to switch player to MSC mode are listed here: http://kb.sandisk.com/app/answers/detail/a_id/207

If the player is detected in MSC mode but not when set to MTP mode, try to update or reinstall the Sansa firmware

NOTE: Sansa Express and Sansa Connect do not have MSC mode. For Sansa Connect you can try reinstalling the firmware using the Connect Recovery Mode.

Additional troubleshooting notes:
If you have replaced the Sansa Player and you still have problems getting it to recognize in the computer, then you may need to try some additional troubleshooting.
- Try connecting on another computer.
- Try using a different USB cable
- Try connecting to the back USB ports which may supply better power.
- If only MTP mode is not working, try reinstalling Windows Media Player
For Windows XP try also download and install the MTP Porting Kit
if u want more help u can go with these site:

http://www.doremisoft.net/Sansa-articles/Convert-video-to-Sansa-on-mac-osx/
http://kb.sandisk.com/app/answers/list/
wish above can help u solve your problems.

There is online support for Sansa Express. When searching for Answers on the topic "express" it gives next list:
http://kb.sandisk.com/app/answers/list/kw/express/r_id/101834


Going to item 13 "Sansa player not recognized by the computer":
http://kb.sandisk.com/app/answers/detail/a_id/42

When the player is brand new, click on the link in the opened page in the page top or use next direct link:
http://kb.sandisk.com/app/answers/detail/a_id/42#brandnew

Else follow up the instructions as described in item 13.

Sansa Express user guide

If more help is needed just post a comment.

Solutions are in order of increasing probability of data loss AND device recovery.
Screen messages are loose approximations

A Soft Reset
1. Hold Power switch up for 5 seconds.
2. Screen displays "Goodbye".
3. Restart

B. Hard Reset
1. Hold Power Switch for 30 seconds
2. Restart

C. Recovery Mode
1. Hold Power Switch for 5 seconds to switch device Off
2. Move switch to Hold
3. Press and hold Home button
4. Connect USB cable to device
5. Screen displays "USB" in small type and "16 MB Format" shows up in My Computer
6. Copy firmware files to "16 MB Format" drive letter
7. Disconnect USB cable
8. Screen displays "Firmware update"
9. Restart device

C. Force Format (This one wipes the data partition. Make sure all needed music/pictures/video exist elsewhere)

1. Hold Power Switch for 5 seconds to switch device Off
2. Move switch to Hold
3. Press and hold top/North/up of Scroll Wheel
4. Connect USB cable to device
5. Screen displays "Format and lose data"
6. Press right/East on Scroll Wheel to confirm
7. Screen displays "Formatting"
8. Restart device

D. Manufacturing Mode (included for completeness only)
1. Hold Power Switch for 5 seconds to switch device Off
2. Move switch to Hold
3. Press and hold centre of Scroll Wheel button
4. Connect USB cable to device
5. Windows detects a new hardware device
6. ???
7. ???
8. ???

firstly you should only remove a usb device "correctly" otherwise problems can occur with device ,pc or both.....when usb device connected there is a small icon on taskbar with a green arrow on it....to renove device right click this icon and choose apprpriate device to STOP....there is a reset button that you can press to reset settings...look for a 1mm hole and put a pin into it and push...goos luck

i tell you connect to the computer your device
and right click on your device and format it