In my case, there was no light on dual shock. It was dead. So I unscrew the back 4 little screws and found the issue… the reset button is a little plastic piece that hits the board of the control. It was tilted down so everytime, it was touching the board so it was like in reset mode all time. This made it not to charge and appeart to be dead. I just tilted it upward carefully and the control started acting normal. I gues someone just hitted really bad on the reset hole that it bended the button down permanently. This is how I fixed mine and I hope it helps you if nothing else have worked so far.