My mp3 player shuts itself off

This is the firmware going bad.
You need to go to the RCA website and download the firmware for your player.
After you download the firmware.
Connect your mp3 player to usb device of your pc.
Then install the the newly downloaded firmware.

You may need to get a firmware update from this web site: http://www.sandisk.com/Retail/Default.aspx?CatID=1376
Remember that you need to back up all of your information before doing the update.

Reset
Firmware Upgrade
Try this: disconnect the player from the computer, turn it off, hold in the volume + button, and reconnect the player to the computer while holding the volume + button in. Keep holding the volume + button for an additional 5-50 seconds. Windows should eventually go into recovery mode and revive the player- it will pop up a window that says Found New Hardware Wizard.

Try this: disconnect the player from the computer, turn it off, hold in the volume + button, and reconnect the player to the computer while holding the volume + button in. Keep holding the volume + button for an additional 5-50 seconds. Windows should eventually go into recovery mode and revive the player- it will pop up a window that says Found New Hardware Wizard.
Or,

There are two ways to format an Mp3 player - one on the computer itself, and one in Windows Media Player. Both methods will end up erasing all the songs on the player, but the player will be "good as new" after that. Sometimes reformatting in this manner will override the player's native formatting and cause problems - this can be reversed in most cases by updating the player's firmware. Firmware upgrades are available from most manufacturers' websites.

WARNING: The following procedures will erase all songs on the player.
Check if the file system is NTFS. If yes, format it to FAT or FAT32. - Connect player to computer, double-click my computer, right click on icon of mp3 player and select format. This only applies to Windows-based computers.
You can also format the player in Windows Media Player itself:
Connect your Mp3 player to the computer and open Windows Media Player. Click on the Sync tab. Pull down the drop down menu underneath the Sync tab by moving your cursor over the Sync tab and left clicking on the little black arrow underneath the Sync tab. Highlight "name of Mp3 player here 1GB" (wording may vary slightly), and then select "Format." - this should erase everything.
-Tha Mp3 Doctor

Hi, you can try to upgrade the player's firmware, you can download it from the RCA Website (http://support.rcaaudiovideo.com/downloads.aspx?product=187), the firmware it's the second app listed.
If your computer doesn't recognize the player, you'll have to turn it off and keep "PLAY" pressed for 10 seconds while connecting it to the USB port, then update the firmware.

Hi, you can try to upgrade the player's firmware, you can download it from the RCA Website (http://support.rcaaudiovideo.com/downloads.aspx?product=187), the firmware it's the second app listed.
If your computer doesn't recognize the player, you'll have to turn it off and keep "PLAY" pressed for 10 seconds while connecting it to the USB port, then update the firmware.

Hi, you can try to upgrade the player's firmware, you can download it from the RCA Website (http://support.rcaaudiovideo.com/downloads.aspx?product=187), the firmware it's the second app listed.
If your computer doesn't recognize the player, you'll have to turn it off and keep "PLAY" pressed for 10 seconds while connecting it to the USB port, then update the firmware.

Hi, you can try to upgrade the player's firmware, you can download it from the RCA Website (http://support.rcaaudiovideo.com/downloads.aspx?product=187), the firmware it's the second app listed.
If your computer doesn't recognize the player, you'll have to turn it off and keep "PLAY" pressed for 10 seconds while connecting it to the USB port, then update the firmware.

Hi, you can try to upgrade the player's firmware, you can download it from the RCA Website (http://support.rcaaudiovideo.com/downloads.aspx?product=187), the firmware it's the second app listed.
If your computer doesn't recognize the player, you'll have to turn it off and keep "PLAY" pressed for 10 seconds while connecting it to the USB port, then update the firmware.

Hi, you can try to upgrade the player's firmware, you can download it from the RCA Website (http://support.rcaaudiovideo.com/downloads.aspx?product=187), the firmware it's the second app listed.
If your computer doesn't recognize the player, you'll have to turn it off and keep "PLAY" pressed for 10 seconds while connecting it to the USB port, then update the firmware.