Nikon Coolpix L31 Reference Manual page 133

Problem
Bright specks appear in
images captured with flash.
Flash does not fire.
Digital zoom cannot be
used.
No sound when shutter is
released.
Images appear smeared.
Colors are unnatural.
Randomly spaced bright
pixels ("noise") appear in
image.
Images are too dark
(underexposed).
Cause/Solution
The flash is reflecting off particles in the air. Set the
flash mode setting to W (off).
The flash mode is set to W (off).
A scene mode that restricts the flash is selected.
On is selected for Blink proof in the smart portrait
menu.
A function that restricts the flash is enabled.
Digital zoom cannot be used in the following
situations.
When Portrait, Night portrait, or Pet portrait is
selected in scene mode
When smart portrait mode is selected
Off is selected for Sound settings > Shutter
sound in the setup menu. No sound is produced
with some shooting modes and settings, even
when On is selected.
Do not block the speaker.
The lens is dirty. Clean the lens.
White balance or hue is not adjusted properly.
The subject is dark, and the shutter speed is too slow
or ISO sensitivity is too high. Noise can be reduced by
using the flash.
The flash mode is set to W (off).
The flash window is blocked.
The subject is beyond the range of the flash.
Adjust exposure compensation.
The subject is backlit. Select Backlighting scene
mode or set the flash mode setting to X (fill flash).
A
19, E12
19, E11,
E12
E17
24, E48
E19
20, E4
20, E8
24, E63
2
F7
24, E5,
E44
19, E11
19, E11,
E17
12
F16
19, E16
19, 20,
E6,
E11
F11