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During a call, the
other side cannot
hear your voice.
The microphone is not covered.
The signal strength
is not strong enough
or your phone is
often off line.
• The antenna is in good condition.
• Move near to a place with strong signal
strength.
Other Bluetooth
devices cannot be
found; sending or
receiving data
failed.
• The Bluetooth function is activated on
both devices.
• The distance between the two devices is
less than ten meters.
• No obstacles exist between the two
devices.
• The other device is not in the hidden
state.
The phone displays
"No service found",
"Service
unavailable" or
"Network problem".
• You are not in an area with weak
magnetic field (in a tunnel or surrounded
by buildings). If so, move to another area
and try again.
• Do not visit the service option without
authorization from your service provider.
Summary of Contents for U3220
Page 1: ...U3220 USER GUIDE UMTS ...
Page 9: ...8 Inserting the UIM Card and the Battery 1 2 3 4 ...
Page 47: ......