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C h a p t e r
Troubleshooting and FAQs
If you encounter problems while using the phone, or if it performs erratically, you can consult the
information in the chart below. If your particular problem cannot be resolved using the information in the
chart, contact the dealer of handset.
Problem
Poor reception
Echo or noise
Unable to select
certain features.
Battery will not
charge.
Shortened standby
time
You cannot switch
your phone on.
(U)SIM card error
13
Possible causes
The network signal is too weak at your
current location, for example, in a basement
or near a tall building, because wireless
transmissions cannot effectively reach it.
The network is busy at the current time (for
example, during peak times, there may be too
much network traffic to handle additional
calls).
You are too far away from a base station for
your service provider.
Poor network trunk quality on the part of your
service provider.
Poor local telephone line quality.
Your service provider does not support these
features, or you have not applied for services
that provide these features.
The battery or battery charger is damaged.
The phone's temperature is below 0℃ or
higher than 45 ℃.
Poor contact between the battery and charger.
The standby time is related to your service
provider system configuration. The same
phone used with different service providers'
systems will not provide exactly the same
length of standby time.
The battery is depleted. In high-temperature
environments, battery life will be shortened.
If you are not able to connect to the network,
the phone will continue to send out signals as
it attempts to locate a base station. Doing so
consumes battery power and will
consequently shorten standby time.
Battery power has been depleted.
(U)SIM card malfunction or damage.
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Possible solution
Move to a location where the network signal
can be properly received.
Avoid using the phone at such times, or try
again after waiting a short time.
You can request a service area map from your
service provider.
Press the End Key and dial again. You may
be switched to a better-quality network trunk
or phone line.
Press the End Key and dial again. You may
be switched to a better-quality network trunk
or phone line.
Contact your service provider.
Contact the dealer.
Adjust the battery charging environment to
avoid extremes of temperature.
Check all connectors to make sure all
connections have been properly made.
If you are located in an area where signaling
is weak, temporarily switch off the phone.
Use a new battery.
Change your location to one where the
network is accessible, or temporarily turn off
your phone.
Recharge the phone's battery.
Take the (U)SIM card to your service
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