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3. Troubleshooting checklist
If you experience any problem while using your mobile phone, please refer
to the following checklist. If the problem still persists, contact your dealer or
nearest carrier.
When the "Insert SIM Card" message appears:
Make sure the SIM card is correctly installed. Check to see if the SIM card
is working properly. If it does not work, try to clean the contact points of the
card. If it is out of order, take it to the nearest carrier.
When the "Password" message appears in Phone locked state:
Enter the phone password. The default password is"1234". If you cannot
remember the password, contact the nearest carrier.
When the "Enter PIN1" message appears:
Input PIN1. If you cannot remember it, contact the nearest carrier. You can
still receive calls even if your mobile phone becomes locked after entering
the incorrect PIN1 on three consecutive attempts.
When the "No Service" or "Network Search" appears:
If you cannot make/receive a call when you are indoors or undergrounds
where the signal strength is poor, move toward a window or go out to an
open area. If you still cannot make a connection, contact the nearest carrier.
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When audio quality is poor:
End a call and try again.
When the other party cannot hear you speaking:
Your phone may be set to MUTE. Disable the MUTE function.
When battery lifetime is shorter than usual:
This may happen when you are in an area with low signal strength. Turn off
your phone when it is not in use. Change the battery when battery energy
is exhausted.
When your mobile phone does not turn on:
Make sure your battery is charged. Check to see if your phone works while
recharging the battery.
When you are unable to send a message:
Either you are not registered to receive an SMS service, or you may be in
an area where your network service provider cannot provide such a service.
When you are unable to make a call:
Your phone may be set to "fixed dial." Cancel the "fixed dial" function.
When you are unable to charge the battery:
This may be the result of one of the following three cases.
1. Your charger may be out of order. Contact your nearest dealer.
2. You may be attempting to use the phone in an overly hot/cold
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