Rav4 interior rear view mirror fix

pranne, Nov 19, 5:16pm
Hi Guys need some help did something which makes me feel stupid.
Original problem - Rav 4 rattling rear view mirror tried to fix and noticed a nut at back of mirror body tried tightening and loosening it.
Created bigger problem the nut came free and now the rear view mirror just flops down and the screw wont go back.
Help does any one know how the nut goes back or how to open the mirror assembly