Zte AT&T Z221, Руководство пользователя

Страница: 22 / 26

41 40
Problem Possible Causes Possible Solution
Battery will not
charge
The battery or battery charger is damaged. Contact the dealer.
The phone’s temperature is below 14°F (-10°C)
or above 122 °F (50°C).
Adjust the battery charging environment to
avoid temperature extremes.
Poor contact between the battery and charger. Check all connectors to make sure all
connections have been properly made.
Shortened
standby time
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.
If you are located in an area where signaling is
weak, temporarily switch off the phone.
The battery is depleted. In high-temperature
environments, battery life will be shortened.
Use a new battery.
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.
Change your location to one where the network
is accessible, or temporarily turn off your phone.
You cannot
switch your
phone on
Battery power has been depleted. Recharge the phone’s battery.
(U)SIM card error (U)SIM card malfunction or damage. Take the (U)SIM card to your service provider
for testing.
(U)SIM card inserted improperly. Insert the (U)SIM card properly.
Debris on the (U)SIM card contacts. Use a soft, dry cloth to clean the
(U)SIM card contacts.
Troubleshooting and FAQs
Problem Possible Causes Possible Solution
Poor reception 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.
Move to a location where the network signal
can be properly received.
The network is busy at the current time (for
example, during peak times there may be too
much network traffic to handle additional calls).
Avoid using the phone at such times, or try
again after waiting a short time.
You are too far away from a base station for
your service provider.
Request a service area map from your service
provider.
Echo or noise Poor network trunk quality on the part of your
service provider.
Press the Power/End Key and dial again. You
may be switched to a better-quality network
trunk or phone line.
Poor local telephone line quality. Press the Power/End Key and dial again. You
may be switched to a better-quality network
trunk or phone line.
Unable to select
certain features
Your service provider does not support these
features, or you have not applied for services
that provide these features.
Contact your service provider.
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 your service
providers.
Troubleshooting and FAQs