How To Fix Ps 4 Controller Trigger. Unless your controller is physically broken, or the rubber pads are torn or crushed, this should fix your problem. Screw the circuit board back down and connect the battery and try it out.
Hit the PS Button on the controller to hopefully turn on and pair your controller in one process. There are more detailed longer videos. Let the alcohol dry completely before using the controller again.
Insert a needle or paperclip in the pinhole on the back of the controller.
Watch some YT vids if that makes you nervous.
DualShock controllers give vibration feedback based on the actions occurring on the screen to immerse the player more into the game. Don't worry if it's a bit hard to do so, but be careful so you don't break the plastic between the trigger and the bumper. Clean with Alcohol: If your controller's trigger is sticky, you can try cleaning it with rubbing alcohol.