Remove the 2 mm long Phillips #000 head screw on the SD Card Reader.

Using a plastic spudger, release the pressure connector marked with the green rectangle by gently prying up from below.

Once the pressure connector is undone, the white ribbon cable connected to the SD Card Reader will pull out with no resistance.

With the ribbon cable disconnected and the screw out, the SD Card Reader will be free to remove and replace.

When replacing the SD Card Reader, ensure the ribbon cable is firmly secured in the pressure connector, with the metal contact points facing down towards the motherboard.