How to clean the Samsung SGH-E317 keypad

Remove the back panel by pressing up on switch, located at the top on the back of the phone.

Unscrew the four 4.5mm screws located on the back plate.

Remove the rubber screw cover using your fingernail.

Unscrew the 4.5mm screw located underneath the rubber cover.

Wedge the end of a plastic opening tool into the crack between the back panel and the phone.

With the back panel removed, the motherboard should be fully exposed.

Remove the camera and volume buttons and place them in a safe spot until reassembly.

Using a plastic opening tool, unplug the ribbon cable connecting the front LCDs to the motherboard.

Detach the motherboard by grabbing the edges of it and lifting it straight out of the phone.

After removing motherboard, the phone will look like this.

Grab the corner of the rubber key pad and lift out slowly.

By using a small standard screwdriver and a fine, thin, soft cloth you can clean in between the keypad to remove dirt and debris.