“Not in service area. Network failure.” is displayed
Check signal intensity indicator. If there is no signal, you
may be in the basement or network blind area in a
building. Please move to another location to receive
signal. If in your situation you are not covered by a
network, please contact your operator for details.
Poor sound quality, echo or noise makes
communication difficult.
Hang-up your phone and dial again. Your network may
connect the phone to a line with better communication
quality.
Standby time declines
Signal at your location is weak, making the phone search
for signal for a long time. When you don’t want to answer
any calls, please turn off your phone’s power for a time
being to help preserve battery life. It is also possible that
the battery has been used for a long time and is
approaching its life-span. In this case, please replace the
battery.