Things You'll Need
Instructions
Remove the battery from the rear of the PSP. Remove the four screws underneath the battery and the two on the opposite end. Remove the last screw on the bottom edge of the PSP.
Firmly grasp the front of the PSP and lift the faceplate off. This will reveal the PSP buttons on the inside of the faceplate. Remove the PSP buttons by simply pulling them off.
Snap the new PSP buttons into place where you just removed the older, broken ones. Make sure they are secured and place the faceplate back onto the PSP.
Place the seven screws into place and tighten them. Reinsert the PSP battery.