i had nothing wrong with the mobile used it for 8 month today i run out of battery as usual after 3 hr plugged it to the charger Red light show up from the LED blinker but this time its kind of weak and mobile doesn't work @ all and in less than a min the red light disappear and phone is 100% DEAD nothing works with it ... ?????
guys pls i help i have more than 800 contact no back up pls

best Regards and thanq all i have read a trick and it works :P
plug the charger disconnect the battery for few sec's and replug the battery and in 5 mins it will work again

I also had my phone with a red light a while ago.
I plugged it into my computer USB terminal and I could not get it charged at all - I thought the battery had died on me.
When I got home, I plugged in my wall charger, and it took about 2 hours before I finally got the "charging" icon.
Good luck.