Loosen the single Phillips screw in the center of the access door.

This screw is captive in the access door.

Remove the access door from your iMac.

The glass panel is fixed onto the front bezel with fourteen magnets around its perimeter.

Stick two suction cups to opposing corners of the glass panel.

To attach the suction cups we sell, first position the suction cup with the movable handle parallel to the face of the glass panel. While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle.

If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent such as Windex.

Gently pull the glass panel straight up off the iMac.

The glass panel has several positioning pins around its perimeter. To avoid shearing these pins off the glass panel, be sure to only pull straight up during removal.

Be meticulous about cleaning the LCD and the inside face of the glass panel before reinstallation, as any fingerprints or dust trapped inside will be annoyingly visible when the display is on.

Remove the following 12 screws securing the front bezel to the rear case:

• Eight 13 mm T8 Torx.
• Four 25 mm T8 Torx.

The front bezel is still attached to the iMac by the microphone cable.

Gently lift the front bezel from its top edge off the rear case. It helps to use your thumbs to push down very gently on the corners of the display.

Once the top edge of the front bezel has cleared the rear case, rotate the front bezel toward the stand and lift it off the rear case.

When reinstalling the front bezel, start at the lower edge and make sure it is flush with the rear case before lowering the top edge onto the iMac.

Disconnect the microphone cable connector, removing tape as necessary.

For the front bezel to sit properly, be sure to tuck the microphone cable and connector into the void next to the camera board.

Pull the LCD temperature sensor connector straight up out of its socket on the logic board.

If necessary, de-route the LCD temperature sensor cable from behind the logic board.

Remove the two 5.3 mm T6 Torx screws securing the data display cable to the logic board.

Use the attached black tab to pull the data display cable connector away from the logic board.

Remove the eight 12 mm T8 Torx screws securing the display panel to the rear case.

Lift the display panel from its left edge and rotate it toward the right edge of the iMac.

With the display panel still lifted, disconnect the four inverter cables.

During reinstallation, place the four inverter cable connectors in voids between components attached to the rear panel so the display panel will sit flush.

During reassembly, the order of the inverter cables is interchangeable within each socket.

The LCD temperature sensor is located on the rear of the display panel in the top right corner when viewed from the rear. It is under the black foil about 40mm (1 1/2 in) from the top edge of the panel.

Lay the display panel face down on a cleared surface ensuring nothing is under the panel that may damage it.

Carefully cut a small nic in the foil at the top right corner and gently peel back at an angle to expose the sensor. It will have a foam pad stuck over it.

Gently peel the foam off the sensor to reveal the PCB assembly.

The Sensor is held in place with a small adhesive pad so to remove it, gently pry it up from one edge with a plastic spudger or similar. I recommend NOT using metal tools here.

Disconnect the cable to remove the sensor

Quality Tip When installing the sensor, ensure the connector is well seated and you don't put the connector or cable under tension as this may cause them to separate after reassembly of the system