QUICK AND TO THE POINT. When I try to “sprint” in first-person shooters it sometimes doesn’t work. Instead my characters goes normal speed, stutters, stops, or even goes backward. This has happened to my on two different PS4 DualShock controllers. By cleaning the inside the of the analog stick I was able to fix the issue. No soldering was needed. In the video, I disassemble and break down the controller in order to take it apart and get inside. I then clean with a Q-tip and alcohol, and put everything back together.