Nikon COOLPIX W100 Reference Manual page 161

Problem
Screen for setting
time and date is
displayed when the
camera is turned on.
The camera settings
reset.
Cannot select
Format card or
Format memory.
Some menu options
are not displayed.
The camera makes
sound.
Shooting Issues
Problem
Cannot switch to
shooting mode.
Cannot take pictures
or record movies.
The camera cannot
focus.
Technical Notes
Troubleshooting
Cause/Solution
The clock battery is exhausted; all settings were restored
to their default values. Configure the camera settings
again.
The internal clock battery is used to power the
camera clock and to retain certain settings. Charging
time of the clock battery takes about 10 hours when
you insert the battery into the camera or connect the
AC adapter (available separately) to the camera, and
the clock battery operates for several days even after
the camera battery is removed.
You cannot format while image lock is set.
Remove image lock.
Some options are not displayed depending on the
Variety menu settings. Change the settings.
Depending on the settings, the camera may produce an
audible focusing sound.
Cause/Solution
Disconnect the HDMI cable or USB cable.
When the camera is in playback mode, press the
c (shooting/playback mode) button, shutter-
release button, or b (e) button.
When menus are displayed, press the shutter-release
button or b (e) button.
The flash is charging while the flash lamp is flashing.
The battery is exhausted.
The subject is too close. Try shooting using Shoot
close-ups in Choose a style.
The subject is hard to focus on.
Set AF assist in the camera settings menu to Auto.
Turn the camera off and then on again.
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