Samsung SGH-I780 User Manual page 54

Troubleshooting
You select a contact to call, but the
call is not dialled
• Ensure that the correct number is
stored in the contact information.
• Re-enter and save the number (if
necessary).
Another caller cannot hear you
speaking
• Ensure that you are not blocking the
built-in microphone.
• Move the built-in microphone closer to
your mouth.
• If using a headset, ensure that it is
properly connected.
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The sound quality of a call is poor
• Ensure that you are not blocking the
internal antenna on top of the device.
• When you are in areas with weak
signals, you may lose reception. Move
to another area and try again.
The battery does not charge properly
or sometimes your device turns itself
off while charging
• Disconnect the device from the
charger, remove and reinstall the
battery, and try charging again.
• The battery terminals may be dirty.
Wipe both gold-coloured contacts with
a clean and soft cloth and try charging
the battery again.
• If the battery no longer charges
completely, dispose of the old battery
properly and replace it with a new
battery.