Under "Tools" menu, select the icon "nImages", which will mainly store all your files of images (.PNG/.JPG) on the device. The recommended size for display is 1140 x 1527).
Click on your favorite image.
Select the icone "Extras" (⋮) on the the top right of the screen. There will be a pop-up dialogue with options: "Slideshow", "Set as sleep screen", "Set as power off screen".
Slideshow: Display the selected image on a whole screen.
Set as sleep screen: Display the selected image on the screen in SLEEP mode
Set as power off screen: Display the selected image on the screen in Power-Off mode
Go back to "nImages" by click on the icon "Go Back" (◁).
Go back to "Tool" menu by click on the icon "Close" (✕)
Select the icon "nFiles". There will be additional folders "poweroff" and/or "sleep", which depends on your previous choice of setting the image as a sleep screen and/or power-off screen.
You can add multiple images to these folders "poweroff" and "sleep", and they will be displayed randomly at every consecutive SLEEP/Power-Off state.
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