ZTE Z930L 사용자 설명서

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If you encounter problems while using the phone, or if it performs abnormally, you can refer to the chart below. 
If your particular problem cannot be resolved using the information in the chart, contact the dealer where you 
purchased the phone.
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.
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.
You can request a service area map from 
your service provider.
Echo or noise
Poor network link quality on the part of 
your service provider.
End the call and dial again. You may be 
switched to a better-quality network link or 
phone line.
Poor local telephone line quality.
End the call and dial again. You may be 
switched to a better-quality network link 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.
Battery not 
charging
The battery or battery charger is damaged.
Contact the dealer.
The phone’s temperature is below 32°F 
(0°C) or higher than 113°F (45°C).
Adjust the battery charging 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.
Problem
Possible Causes
Possible Solution
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 power 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.
Cannot turn your 
phone on
Battery power has been depleted.
Recharge the phone’s battery.
micro-SIM card 
error
micro-SIM card malfunction or damage.
Take the micro-SIM card to your service 
provider for testing.
micro-SIM card inserted improperly.
Insert the micro-SIM card properly.
Debris on the micro-SIM card contacts.
Use a soft, dry cloth to clean the micro-SIM 
card contacts.
Unable to connect 
to the network
micro-SIM card invalid.
Contact your service provider.
You are not within the network’s service 
area.
Check the service area with your service 
provider.
Poor signal.
Move to an open space, or if you are inside 
a building, move closer to a window.
Troubleshooting
Troubleshooting