Hyundai E355 User Manual page 13

Signals are
obstructed.
For instance,
radio waves
cannot be
effectively
transmitted
nearby a high
Poor received
building or in
signal quality
a basement.
congestions
occur when
you use the
mobile phone
in high-traffic
hours
The mobile The battery
phone cannot energy is
be powered on exhausted.
Calls cannot be Call barring is
dialed activated
The SIM card
is invalid
The mobile
The mobile
phone cannot
phone is not
connect the
in a service
network
area of the
GSM network
The signal is
weak
The charging
voltage does
The battery
not match the
cannot be
voltage range
charged
indicated on
the charger
Move to a place where signals can be effectively transmitted
Line
Avoid using the mobile phone in high-traffic hours
Move to the network operator's service area
Move to a place where the signal quality is high
Ensure the charging voltage matches the voltage range
Charge the battery
Cancel call barring
Contact your network service provider
indicated on the charger
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