Zte Z557 User Manual page 127

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Problem
Unable to select
certain features
Cannot charge
the battery
Shortened
standby time
Possible causes
Poor local telephone line
quality.
Your service provider does
not support these features,
or you have not applied for
services that provide these
features.
The battery or battery
charger is damaged.
The phone's temperature is
below 32°F (0°C) or higher
than 113°F (45°C).
Poor contact between the
battery and charger.
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.
The battery is depleted. In
high-temperature
environments, battery life
will be shortened.
Possible solution
End the call and dial again.
You may be switched to a
better-quality network link or
phone line.
Contact your service provider.
Contact the dealer.
Adjust the battery charging
environment to avoid extreme
temperatures.
Check all connectors to ensure
that all connections have been
properly made.
If you are located in an area
where signaling is weak,
temporarily power off the
phone.
Contact the dealer for a new
battery.
127

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