If your PS3 controller starts acting strangely or the battery dies, you might need to pop it open to clean the inside or change out the battery for a new one. The PS3 controller includes a clip that makes it difficult to open if you’re not pressing in the right spot. Before opening up your controller, check your warranty to see what it covers and how long it lasts. If your PS3 is still under warranty, send the controller back for repairs instead of voiding the warranty by opening the controller.
Remove the five screws located on the back of the what screwdriver to open ps3 controller. Set them aside in a place you won’t lose them or accidentally knock them over while you’re working on the controller.
Turn the controller upside down with the bottom of the handles facing you. Position your hands so that each thumb is pressing into the center of the controller between the two handles on the side facing you, not the top of the controller. You’ll notice a thin line running around the controller where the top and bottom pieces are joined. Place your thumbs so that one is under the line, on the bottom half of the controller, and the other is above the line on the top half of the controller.