Take out the metal shield. You can use a prying tool to take it out. Once out, you should be able to see the RAM and the connector.

Removing the RAM is easy. You will need both your hands. Gently push the metal prongs outside of the RAM as shown with yellow markers and the RAM should pop out upwards. Once done, gently pull it out of the socket.

For installation of new RAM, insert the RAM at a 45 degree angle into the socket and push it down until the metal prongs click it back in.