I bought a SanDisk Sansa 2GB blue for my mother, and it’s the first day using it. She charged it using the USB port, and then she thought the music was still playing so she turned it off using the slider a couple of times, and now it doesn’t turn on. Please help.
Reload the firmware.
Simpler than that, try holding the power switch up, on the ON position, for about 20 seconds. This should reset the device, then try powering up again.