Symptom
Check item
Calls are not
connected
(The out of
service area
icon does not
disappear
when you
move, or
calls cannot
be made or
received even
when the radio
wave is strong
enough)
• Turn the power off and on,
or remove and reinsert the
battery or miniUIM.
• You may not be able to
make or receive calls,
depending on the type of
radio signal, even in the
service area or even when
strong signal is indicated
with 4 wave-level bars .
Move to another place and
call again.
• Depending on how congested
the radio waves are, it may
be difficult to establish
a connection in crowded
places due to a congestion
of calls and emails. In this
case, the caller hears a
busy tone. Move to another
place or call again later.
■ Screen
Symptom
Check item
The display is
dim
• Has the screen backlight
timeout been set? →P138
• Has the screen brightness
been adjusted? → P138
• Is the battery level low?
→ P47
■ Sound
Symptom
Check item
During a
voice call, the
other party’s
voice is
difficult to
hear or is too
loud
• Has the call volume adjusted
with the volume key?
→ P101
242
Appendix / Index