To access your media in Gallery mode within the 1990\retro's MicroSD card from Live Preview photography mode, press the plus sign [+] side-button twice
in unhurried succession.
Once in Gallery mode, you can press either the plus [+] or minus sign [–] side-buttons for bi-directional scrolling of all your media. To exit
Gallery mode, just press and hold the plus sign [+] side-button.