Then I tried to fix it by opening it and seeing if there's any problem, and it didnt seem like it had. The only thing I did when I opened the controller is that I took the analog stick out and put it back again. Then, another problem appeared: whenever I moved the analog stick upwards, to move forward in-game, it stopped moving after a while, like 5-10 seconds. What should I do? Is that a chipset problem? Please help!