ZTE Corporation Z331 Manuale Utente
Confidential and Proprietary Information of ZTE CORPORATION 35
C h a p t e r
13
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.
information in the chart below. If your particular problem cannot be resolved using the information in the
chart, contact the dealer of handset.
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.
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.
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).
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.
again after waiting a short time.
You are too far away from a base station for
your service provider.
your service provider.
You can request a service area map from your
service provider.
service provider.
Echo or noise
Poor network trunk quality on the part of your
service provider.
service provider.
Press the End Key and dial again. You may
be switched to a better-quality network trunk
or phone line.
be switched to a better-quality network trunk
or phone line.
Poor local telephone line quality.
Press the End Key and dial again. You may
be switched to a better-quality network trunk
or phone line.
be switched to a better-quality network trunk
or phone line.
Unable to select
certain features.
certain features.
Your service provider does not support these
features, or you have not applied for services
that provide these features.
features, or you have not applied for services
that provide these features.
Contact your service provider.
Battery will not
charge.
charge.
The battery or battery charger is damaged.
Contact the dealer.
The phone‟s temperature is below 0℃ or
higher than 45 ℃.
higher than 45 ℃.
Adjust the battery charging environment to
avoid extremes of temperature.
avoid extremes of temperature.
Poor contact between the battery and charger.
Check all connectors to make sure all
connections have been properly made.
connections have been properly made.
Shortened standby
time
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.
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.
is weak, temporarily switch off the phone.
The battery is depleted. In high-temperature
environments, battery life will be shortened.
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.
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.
network is accessible, or temporarily turn off
your phone.
You cannot switch
your phone on.
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