It flashes blue three times then the blue light fades out and it work work. i have tried charging it .

Try this repair video on youtube, might explain:
https://www.youtube.com/watch?v=xM6bpKK0LG0

You can buy a replacement very cheaply www.a4c.com/product/samsung-wep200-bluetooth-headset-black.html

I don't know if you've done this, but before charging the headset, you want to turn it off. On the "Take A Good Look" page from the link below for the Plantronics M100 you'll see how to turn it off. If it's still not charging right, you may need to take it back to your retailer for warranty replacement or call Plantronics at 800-544-4660 x5 x5538 for warranty assistance.

Plantronics M100 User's Guide

Good luck from Headsets Direct!

Try to press the power boton in the same time you plug the charger, after this action mine is working and charging perfectly, maybe this is the "reset" solution... Hope this helps you.

remove the battery, if you let the battery connecters hit the terminal a few times it works a a manual reset it works with almost anything

The cells in the battery are starting to go bad which is why the light is blinking the way it is.

Once you get a new battery put in there the light will stay blue instead of flashing amber.

Hi Iceprincess5

The three flashing lights indicate the battery is dead. Since it still wont power up with the cable plugged in I'd say the port has gone. Try wiggling the adapter about in the port to see if it begins to charge. If not then you would need to take it to a laptop repair centre to get a new dc port soldered on or buy a docking station.

UNPLUG THE RADIO !!!!!!!!!
Try removing the battery cover and remove and disconnect the battery.
Reconnect the battery and replace the battery cover.
Now, plug the radio into the wall electrical outlet and wait, the blue light on the radio top should start flash and will flash for about 10 minutes and then stop flashing.
Leave the radio plugged in for about 16 to 24 hours to completely charge the battery. For the first three or four times, completely drain the battery and completely recharge for 16 to 24 hours, this will condition the battery .... mine works like a dream. GR

OK I managed to get my head set to work. Make sure the unit is charged, press and hold both the 'ON' button (on neck piece) and the "PLAY/PAUSE' button on the right earpiece. Keep holding then the LED should flash Blue three times THEN flash alternate RED and BLUE. You should then be able to Pair the Device. Good luck