Protecting Photographs From Deletion - Nikon D3100 Reference Manual

Protecting Photographs from Deletion

In full-frame, zoom, thumbnail, and calendar playback, the L button can be used to
protect photographs from accidental deletion. Protected files can not be deleted
using the O button or the Delete option in the playback menu. Note that protected
images will be deleted when the memory card is formatted (0 21).
To protect a photograph:
1
Select an image.
Display the image in full-frame playback or playback zoom or highlight it in the
thumbnail list in thumbnail or calendar playback.
Full-frame playback
2
Press the L (A) button.
The photograph will be marked with a P
icon. To remove protection from the
photograph so that it can be deleted, display
the photograph or highlight it in the
thumbnail list and then press the L (A)
I
button.
A
Removing Protection from All Images
To remove protection from all images in the folder or folders currently selected in the
Playback folder menu, press the L (A) and O buttons together for about two seconds
during playback.
108
Thumbnail playback
L (A) button
Calendar playback