ZTE Corporation ZTEF930 Manuale Utente
Confidential and Proprietary Information of ZTE CORPORATION 30
C h a p t e r
14
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 can not be resolved using the information in the
chart, contact the dealer of handset.
information in the chart below. If your particular problem can not 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 can not
effectively reach it.
location, for example, in a basement or near a tall
building, because wireless transmissions can not
effectively reach it.
Move to a location where the
network signal can be properly
received.
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).
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.
or try again after waiting a short
time.
• You are too far away from a base station for your
service provider.
service provider.
You can request a service area map
from your service provider.
from your service provider.
Echo or noise
• Poor network trunk quality on the part of your
service provider.
service provider.
Press End Key and dial again. You
may be switched to a better-quality
network trunk or phone line.
may be switched to a better-quality
network trunk or phone line.
• Poor local telephone line quality.
Press End Key and dial again. You
may be switched to a better-quality
network trunk or phone line.
may 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°C or higher
than 45 °C.
than 45 °C.
Adjust the battery charging
environment to avoid extremes of
temperature
environment to 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.
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.
signaling 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.
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.
the 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
provider for testing.
provider for testing.