I bought a new six-axis controller for my best friend, and I did a custom paint job on it. I had to take it apart, but after I put everything back together (right), it just blinks the red lights when it is plugged into the PS3 via USB. Even when I press the PS button it still just blinks for a while. I've also tried to reset it by pressing the reset button on the controller, turning on the PS3, plugging in the USB, and pressing the PS button, but still nothing happens.
I am very certain I didn't harm anything inside the controller when I disassembled it. I have a PS3 Slim if that is any help. Any idea what could be wrong and what I should do to fix it?