If the lock switch is operational, slide the lock switch up vertically to release the optical drive.

This step is for removing the whole optical drive and not the optical drive control panel. Both steps will lead to unscrewing the optical drive screws.

Remove the optical drive after it is released.

Step 10 will go over the steps to take if your lock switch is not operational. Skip step 10 if you were able to eject the optical drive with the operational optical drive lock switch.