Wont turn on.

Some older computers that have USB ports that limit the output to 5V @ .5 amp current. Depending on your MP3 player, it may not be sufficient to charge the player. This was the spec back then. Since then, new USB specs call for 5V @ 1.0 amp current - a two fold increase in current.

You may have better luck connecting to a powered USB hub instead. If you're only looking to charge the MP3 player, you don't even need to connect it to the computer. The powered hub gets powered by connecting the ac adapter / power supply to a wall outlet - instead from of the computer's power supply via mother board.

The above assumes there is a good, rechargeable battery; a functioning charger & USB port in the MP3 player and of course, a working USB cable. If any of the above is faulty, you'll never get the MP3 Player to accept a charge. You should try different computers, cables and ports if possible.

Good luck!

First try connecting the MP3 player to a different computer.
If this does not work then try an different or new USB cable.

this happened to me wen i first got mine, so what in the manual the mp3 will need at 4 hours at first to be charged fully, when u charge it flip the on/off switch ON, n let it sit as long as you can. thats the only way it will charge, the reason why it keeps turning off is becuz its on low battery

u need a new cord for charging.u lost ur receipt so no problem u can buy it any electronic or computer market i hope.

I had the same problem. Don't buy a new cord. There is a sony place in winnipeg you can get it fixed there.

Best first bet is dead battery. If it is a special battery then do the costings for the repair as it may be cheaper to replace the player.

Down load the firmware on Sansa's website. I have a Sansa 250R and it wouldn't work with the new replacement usb (Griffin) cord I bought at Best Buy. So I bought a Sansa Fuze and the cord that came with it worked on the E250R. Huh? Yeah, go figure...and oh, that replacement Griffin usb cord I bought worked fine with the new Fuze. I came real close to buying a new battery for the E250R but instead invested that money in the Fuze.

Solution:
1)Recovery mode - to get PC to recognize player -
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.
2) To prevent future occurrences - make sure you have downloaded the installation CD or software - open Philips Device Manager (Start --> All Programs --> Philips D) - click on Update - twice - the player will upgrade to the latest firmware

-Tha Mp3 Doctor

get ahold of sandisk sansa and there is a way to reset your mp3 player. always click on disconnect before removing it from your computer.

before i had the same problem, when i thought my k5 runs out of battery i plug it in to charge, but it said charge complete and when i unplug it, it still wont turn on. but then i tried switching to a different usb plug on my computer and it worked. so i guess the problem is that some of your usb slot on your computer isnt working properly, try using a different slot.