ZTE Corporation F953 Manuale Utente

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Chapter 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. 
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 trunk quality on 
the part of your service provider. 
Press End Icon and dial again. You may be 
switched to a better-quality network trunk or phone 
line. 
• Poor local telephone line quality. 
Press End Icon 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. 
Battery will not charge. 
• The battery or battery charger is 
damaged. 
Contact the dealer. 
• The phone’s temperature is 
below 0°C or higher than 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. 
42 Confidential and Proprietary Information of ZTE CORPORATION