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.

If necessary, remove the pieces of tape securing the hard drive/optical drive thermal sensor cables to your iMac.

Disconnect the hard drive thermal sensor by pulling its connector toward the top of your iMac.

When removing this connector, it is helpful use your thumbnails to push the ears on either side of the connector toward the top of your iMac.

Pressing the top of the hard drive bracket down to release it from the rear case requires a substantial amount of force. We recommend laying your iMac stand-side down on a table to avoid knocking it over.

Press the hard drive bracket down toward the bottom edge of your iMac to free it from the rear case, then rotate the top of the drive toward yourself.

Rotate the hard drive toward yourself, then lift it up off its mounting pins.

The hard drive is still connected via the SATA cables.

When reinstalling your hard drive, be careful not to push the rubber grommets through the openings in the chassis with the lower hard drive pins as retrieving them may require logic board removal.

Insert the flat end of a spudger between the SATA power cable connector and the edge of the hard drive.

Twist the spudger to separate the connector from the hard drive.

Pull the SATA power connector away from the hard drive.

Disconnect the SATA data cable by pulling its connector away from the hard drive.

Remove the piece of foam tape covering the hard drive thermal sensor.

Use the tip of a spudger to lift the thermal sensor lock finger while pulling lightly on the thermal sensor cable.

If your thermal sensor seems to be stuck to the face of the hard drive, skip to the next step.

Use the flat end of a spudger to pry the thermal sensor bracket off the face of the hard drive.

If you're replacing your hard drive, transfer this bracket and the thermal sensor to your new hard drive. If the adhesive refuses to stick during reinstallation, apply double-stick tape to the underside of the two flat ears of the thermal sensor bracket.

Remove the two T8 Torx screws securing the hard drive bracket to the hard drive.

After you remove these two screws, the hard drive bracket will fall away from the hard drive.

Don't forget to transfer these to your new hard drive.

Remove the two T8 Torx pins from the connector side of your hard drive.

Don't forget to transfer these to your new hard drive.