Things You'll Need
Instructions
Put a soft cloth down on a table. Put the PSP face down on the soft cloth. Remove the battery compartment and remove the battery. Put the battery compartment and battery aside.
Remove the screw under the warranty label inside of the battery compartment. Use the jeweler's screwdriver. Remove the screw from the top rim of the PSP near the universal media disc (UMD) drive lid.
Use the jeweler's screwdriver to remove the four screws from the back of the PSP.
Turn the PSP over and place it face up on the soft cloth. Grab the top of the PSP with the left hand and the bottom with the right hand. Separate the top case of the PSP from the bottom case and put it down carefully on the soft cloth, face down.
Take the lint-free cloth and wipe gently over the key contacts on the circuit board that is at one end of the PSP. Gently wipe the keys in the top case with the lint-free cloth.
Reassemble the PSP. Insert the battery and close the battery compartment. Turn on the PSP and enjoy using the buttons that are no longer broken. You have repaired them.