LG KM555 User Manual page 145

MESSAGE POSSIBLE CAUSES
Number not The Fixed dial number
permitted function is on.
LCD Low battery
Dimming
When the battery is
empty, the LCD screen
will be dimming to
reduce the power
supply.
The screen Proximity sensor
does not turn problem
on when I
receive a
call.
POSSIBLE CORRECTIVE
MEASURES
Check settings.
Recharge the battery.
The proximity sensor is
detecting a obstacle in front
of the screen and turns off
the screen to avoid accidental
keypresses.
Make sure that the area
around the proximity sensor
is clean and perform a
calibration of the sensor.
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