Nwa 3000 I was using my mp3 player yesterday when it started to bleep and then switched off, however the lights on the controls still remain on and will not switch off and the screen is blank -- can anyone please help

sounds like a car alarm is fitted

please can you tell me how ofter the light's flash ? does there appear to be some kind of sequence ?

The device has an on/off toggle switch and four control pushbutton switches (left ro right) are:
1. Menu (FM Radio or MP3 Player) select
2. Play/Hold
3. Back/Previous
4. Forward/Next

Inputs and output are:
1. 1/8" External Source Input Jack
2. Micro SD Slot
3. Mini USB 5v External Power Input
4. 1/8" Headset/Output Jack
5. USB Memory Card/USB Cable Input/ (Right Side)

The Menu switch has two functions, MP3 Player and FM Radio as indicated by the display. If the Play/Hold switch is pushed in and held for a few seconds the radio will automatically sweep and put the available local stations in memory. The back and forward switches are used to select the desired station. The display indicates station channel number and broadcast frequency (MHz).

In the MP3 Player function Menu function the Play/Hold Switch starts and stops the player. Back and Forward switches select the previous or next track. Simple as that. The player automatically plays the next file if left alone unless the Play/Hold switch is pressed. The display indicates file number and play time. No other functions, like folder selection, were found. If a 5v dc supply is connected to the Mini USB connector the battery will remain charged and it can be used as a small table radio/player. No tests were made to see how long it would operate on its internal battery.

The sound is good and better than expected for a device its size. Enough sound output to hear it in any part of an small house (With some distortion of course). The volume is controlled by holding the forward or back switches in for a couple of seconds and it will switch to volume level control. The display is LED rather than LCD and easier to view. It is on continuously when the player is working with the charger attached.

MP3 players can only play music files in mp3 file format.
You need to convert your CDs to mp3 music files onto your computer or download them from the Internet and then copy them to your MP3 player using the supplied USB cable when you connect the MP3 player to the computer.

Click on this link for instruction on converting music files to mp3 file format :-
http://www.fixya.com/support/r5798418-creating_transferring_mp3_music_files

Try Fully charging the most electrical equiptment have a reserve built in its battery so you are able to switch on by going off again Batteries need fully charging. If you have done this then your battery does not hold its charge Sorry but they need replacing.

sir i have micromax v8 mp6 player. Made in china. i have problem that when i switche on the start butten just the green light lit it but the display remains dark.It also did not detected at any USB Port at any system.

You may need to now reset the player, that may have been a bit much for it. To reset your Sansa Mp3 player. Slide and hold the Power switch up for approximately 20 seconds. Release the Power switch. To turn the player on, slide the Power switch up then release instantly. If that does not get your player working again, try and Format to clear any corrupt files that may be present.
Sansa Mp3 player frozen? How to reset and...

You need to plug the Mp3 player into the computer and bleep delete the whole system off of itself start over. I found an ipod on the ground infected with a virus and I got complete control after doing this. Trust me you can do it.

Make sure that is turned on.(switch to the red side) Then once connected to USB port, it will start blinking red and green.Once fully charged the light will remain red. It takes about 2.5 hours to fully charge.

Does any messages turn on on the screen