RAZR/bluetooth light/charging problems.

The batteries won't charge. You might want to google around for replacement batteries.

First I'd try a factory reset. PRess the +, - and multifunction button for 6 seconds until the blue light flashes and it shuts off. When you turn them on next, it's in pairing mode and try again.

Do an Hard reset. Plug charger into the headset, press and hold power button and plug the charger into AC, light indicator will change after a while from red to green/blue.

contact manufacturer

It is charged when the red light goes out. Press and hold the VOLUME DOWN button for one second and an audible will give you the battery charge level - high - medium - low.

yes the red charge light will only stay lit for just a little bit... then turn it on by pressing down above the words written "charge". You should be pressing and holding down on a dial with three semi circles above it (as szuravic stated). Press and hold down until you get the bluetooth and power button lit on blue. Then go to your settings and bluetooth.... "bluetooth keyboard" should pop up. Click on it and then it will ask you to enter a 4 digit code on your keyboard followed by the return key. Soon after you should be "connected". If you are fully charged (first time plugged in should be 12 hours.. then after 4 hours) then you can unplug. Hope that's helpful!!

It won't charge

Try to charge it on a USB on the PC, If the red light doesn't stay on, meaning it's charging, then you have a faulty headset and you'll have to contact your retailer to ask for a replacement.
Unfortunately this is a know issue with this headsets...
Hope it helps

Dear its battery problem change your battery and its all done.

when red light goes off bluetooth is no longer charging

Does the light blink blue other wise and show red when charging ?
Make sure ear set is fully charged overnite?

Turn off and turn on.
Only then when turning on, DONT REMOVE YOUR FINGERS AND KEEP PRESSED for about 10-30 Seconds,, Watch for SOLID BLUE... Remove and proceed to pair..
If it still does not work, I would suggest that you keep trying .. Since I assume that the phone is charging well and then discharging over a time..