Canon PowerShot SD870 IS Shutter Release Button Replacement

Remove the wrist strap, if present.

Remove the lithium-ion battery.

Remove the two 4 mm Phillips #00 screws on the bottom of the camera.

Remove the screw next to the wrist strap attachment.

Pull up the “A/V OUT DIGITAL” cover and remove the screw above the USB port.

Carefully unhook the “A/V OUT DIGITAL” cover from the hinge.

Pull the front cover from the camera by using gentle upward pressure.

Remove the two Phillips #00 screws from the flat end of the camera.

Remove the black L-shaped side cover plate.

Remove the silver u-shaped retainer plate.

Slide the back casing off.

The first screw that needs to be removed is located on the bottom of the camera, on the left hand side.

Using a Phillips #00 screwdriver remove the 0.133in silver screw on the bottom left-hand side.

The second screw that needs to be removed is located on the top of the camera.

Using the same Phillips head screwdriver, remove the last 0.133in silver screw.

This will detach a silver U-shaped piece that was holding LCD screen on. Remove the piece and put it to the side.

The LCD screen should now only be attached by the LCD data cable.

Lift the screen from the right side and use a small screwdriver or other small opening device to flip the black portion of the connector upward to unlock it.

Carefully slide the data cable out of the connector.

The LCD should still be connected by the backlight cable.

To remove the backlight cable, use another small opening device to unlock the backlight cable.

Carefully slide out the backlight cable.

The LCD screen should now be fully detached from the camera body.

The LCD screen casing is connected by 4 claws located on the top and bottom on the left and right hand side.

Carefully disengage the claws by gently prying them off one by one.

Once the claws are disengaged, the back of the casing will still be connected to the front casing by the backlight cable.

Carefully peel the backlight cable off of the casing.

The LCD screen and housing should now be in three pieces:

LCD screen

LCD screen frame

LCD screen back housing

The LCD screen itself can now be removed and fixed/replaced.

With the case and LCD screen removed, you are ready to remove the release button.

Begin by using the Philips #00 screwdriver to remove two silver 0.159in screws on the top and front of the camera.

The top plastic piece holding the release button should be held on only by a red-and-black wire connector to the logic board.

Remove the connector from the logic board and detach the release button housing from the camera.

With the plastic housing for the release button removed from the camera, use the Philips #00 screwdriver to remove two silver 0.090in screws.

The release button can now be removed and fixed or replaced.