Disassembling Pentax Optio S4i Lens Assembly

Remove the following screws:

Two silver 3.15mm Phillips #00 screws on the right side of the camera

Two silver 2.08mm Phillips #00 screws on the left side of the camera

Remove the two indicated screws on the bottom of the camera:

The screw circled in red is a longer silver 3.15mm Phillips #00 screw

The screw circled in blue is a shorter silver 2.25mm Phillips #00 screw

Carefully pull the back of casing away from the front.

Silver donut-shaped button will fall off. Place separately. Remove the plug covers on the right side of camera, labeled “PC/AV” and “DC IN 4.5V”.

To remove the front cover, gently hold the inside structure of the camera and slowly pull the front cover off.

On the front of the camera, in battery case, remove screws indicated:

Two black 2.05mm Phillips #00 screws

Flip the camera over to the backside and remove screws indicated:

The screw circled in red is a longer black 3.00mm Phillips #00 screw

The screw circled in red is a shorter black 2.00mm Phillips #00 screw

Pull the cover plate off for the two power cord jacks.

Cautiously and gently pull up the control board at the upper left corner, next to the viewfinder.

Remove the orange tape on top of the SD cardholder.

Open the battery cover and lift plastic piece off.

Remove tape on left side of camera.

Remove the indicated 2.40mm Phillips #00 screw to release top left LCD bracket.

Remove top left LCD bracket.

Push down bottom left LCD bracket to release the LCD from grip.

Gently lift up LCD screen.

Slowly pull LCD screen to the left to remove it from the other grips.

Lift up tape slightly on both sides of speaker.

Use the pointed end of a spudger to lift up brackets.

Lift speaker cover out.

Remove speaker cover.

Turn camera to front.

Carefully peel off orange wire tape. The tape is glued to the surface indicated.

Lift speaker from holder.

Use a wedge to lift up the wire tape flap.

Insert the point of a spudger underneath the wire shown.

Carefully lift the wire out of the crevasses.

Slowly bend the speaker's wire tape away from the lens assembly. Avoid creasing the tape.

Remove indicated screws:

Three Black 3.80mm Phillips #00 screws.

Remove the indicated black 3.40mm Phillips #00 screw on the bottom of the camera.

Remove copper leads.

Unscrew the indicated 3.80mm Phillips #00 screw on the back of the camera.

Remove screw and bracket.

Turn the camera over to the front.

In the following step, you will undo the indicated pegs. PROCEED TO THE NEXT STEP.

Carefully holding the camera, grab the corresponding two points.

Carefully twist the lens assembly away from you. You will be turning your hand clockwise.

Pull lens assembly out.