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Developer Options
Developer options
contains settings that are useful for developing
Android applications.
About Phone
View phone status and legal information. You can also check for
system updates.
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Troubleshooting
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 cannot
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.
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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.
End the call and dial
again. You may be
switched to a
better-quality network
trunk or phone line.
Poor local telephone line
quality.
End the call 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 not
charged
The battery or battery
charger is damaged.
Contact the dealer.
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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.
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.
