Troubleshooting
Before contacting an authorized service center, perform the following simple checks. They may save you the time and expense of an unnecessary service call.
NOSVC is displayed in the display.
Make sure you are in the service area.
If you have changed the service system, wait for about 2 minutes.
Make sure you have chosen correct service system mode 
Sometimes, NOSVC indication appears briefly. It is normal.
Beep tone sounds when you place a call.
The call has not gone through.
When beep tone sounds, press SEND again so the number is redialed automatically.
To cancel automatic redial, press END.
Ringer bell does not sound and receiving lamp flickers.
You have set the phone to the lamp mode.
LOCKED is displayed and you cannot make a call.
The phone is locked.
Enter your lock code. (Default:0000)
If you forgot the lock code, consult with the service center.
Battery usage time is different with that of this manual.
If you use analog or digital mode alternately, the usage time may be reduced.
You may be recharging your battery too frequently or before it is completely discharged (see Battery Safety Precautions on page 78).
Always store batteries in a cool, dry place.
The phone does not turn on, even though the battery is full.
Remove battery from the phone and reattach it.
Miscellaneous
Nothing is displayed
Check that the battery has been charged and installed correctly.
Check that the phone has been switched on (PWR button pressed for more than one second).
You have entered a phone number but the phone is not dialing it.
Have you pressed the SEND button?
Is the cellular phone service currently available (SVC displayed)?
Are you accessing the right cellular network (if the phone is programmed for dual network use)?
Your party cannot reach you
Is your phone switched on (PWR button pressed for more than one second)?
Are you accessing the right cellular network (if the phone is programmed for dual network use)?
Your party cannot hear you speaking
Have you switched off the microphone (MUTE displayed)? 
Are you holding the phone close enough to your mouth? The microphone is located at the bottom of the phone.
The phone starts beeping and 
flashes on the display
The battery is insufficiently charged. Replace the battery and
recharge it fully until the lamp on the charger turns green.
Miscellaneous
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