PS4 DualShock 4 R1 Button Malfunction (Sometimes Responds) Thank you for viewing. I am selling a PS4 controller, "DualShock 4". Regarding the product condition, the R1 button is malfunctioning and sometimes does not respond when pressed. Other buttons and sticks have been tested and confirmed to work without problems. The exterior shows signs of use, with small scratches and scuffs, but there is no major damage. Due to the unstable operation of the R1 button, this is being sold as a junk item. Returns and claims are not accepted, so please understand this before purchasing.