Sandisk will not turn on, battery is fully charges, when I plug into the computers there is a white screen, but on the computer it shows that all music is still in the sandisk, I just can't play it from the sandisk

Put a pin in the reset button situated in the tripod hole.Do it three times for about thirty seconds each time.Also depress the on off switch for about thirty seconds.Put it in the usb port of your computer to charge.After about thirty minutes or an hour the screen should go white.A battery shows on the screen.Wait till the battery shows all green,then it is fully charged.

I plugged in my sandisc player to my computer to charge the battery and when I unplugged it fully charged it still just says connected?

charge it until the battery marker on the screen is full you should get up to 20 hrs. of battery life.

Try removing the battery and put it back in after a minute or so.

try to format

Make sure that your sansa lock switch is in the unlocked position.

While connected to the computer, it uses the computer's power & the battery meter shows full. You need a new battery.

2 Suggestions: 1) It may be that the battery isnt charged, let the unit charge fully 2) If that doesnt work, its probably time to send the unit back to sandisk

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.

After leaving it on all night and running the battery down I plugged it back in, it charged and everything is working fine. The morale of this story is, don't unplug it from the computer while it is in use.