120
Problem
Possible causes
Possible solution
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
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 phone and charger.
Check all connectors to
ensure that all
connections have been
properly made.
