Changing CartridgesSteps to change the cartridge on G8.CAUTION: Always replace cartridges with a manual (not electric) screwdriver to avoid damage to the device's plastics.Power off G8.Using a Phillips #1 screwdriver, remove the screws on each side of the device.Pull up on the cartridge.Slide a new cartridge onto G8, ensuring the cartridge clicks into place.Replace the screws into each side of the device.