Nikon Coolpix L830 Reference Manual page 186

Problem
Monitor is hard to read.
Date and time of recording
are not correct.
No indicators displayed in
monitor.
Print date not available.
Date not imprinted on
images even when Print
date is enabled.
Screen for setting time zone
and date is displayed when
camera is turned on.
Camera settings reset.
Camera becomes hot.
Camera makes sound.
F8
Cause/Solution
Adjust the monitor brightness.
The monitor is dirty. Clean the monitor.
If the camera clock has not been set, O flashes
during shooting and movie recording. Images and
movies saved before the clock is set are dated "00/
00/0000 00:00" or "01/01/2014 00:00" respectively.
Set the correct time and date from the Time zone
and date option in the setup menu.
The camera clock is not as accurate as ordinary
watches or clocks. Periodically compare the time of
the camera clock with that of a more accurate
timepiece and reset as required.
Hide info is selected for Photo info in Monitor
settings in the setup menu.
Time zone and date has not been set in the setup
menu.
The current shooting mode does not support Print
date.
The date cannot be imprinted on movies.
The clock battery is exhausted; all settings were
restored to their default values.
The camera may become hot when used for an
extended period of time to shoot movies or send
images using an Eye-Fi card, or when used in a hot
environment; this is not a malfunction.
When Autofocus mode is set to Full-time AF or
while in some shooting modes, the camera may
produce an audible focusing sound.
A
72, E60
F6
16, 72,
E58
72, E60
16, 72,
E58
72, E62
16, 19
–
69, E55