Blackberry shows a battery with a red X

Belive me i can tell you how to fix it with my Curve 8900, that means ur phone is not conecting with the battery, just drop the phone on a carpeted floor face ear side up of course. I know it sounds crazy but it works u must jar it up. don`t drop it any higher than 3 feet. try it a couple of times until it starts chargeing and then once it charges cut it on i promise try it.