I've decided to fix my phat, and am at the point where I can get it to power on. The problem is that the battery seems to need charged, but the charge light will only stay lit for just over 1 second before shutting off (it's during this 1 second that I press the power button and see the green light turn on, that's how I know it's at the point where it can power on). Does anyone know what might be causing it to not charge?