Operation Manual

Troubleshooting
108
Troubleshooting
Network not
displayed.
SIM card not installed
correctly.
Ensure that the SIM card is inserted
correctly (see page 28).
Contacts between SIM card
and phone are dirty.
Gently clean the contacts of the SIM card
and phone.
Network signal is weak. Move clear of any obstructions that may
block the signal.
SIM card is damaged. Contact your service provider to obtain a
replacement SIM card.
Cannot make a
call.
You are outside of your
network service area.
Connect to a different network if this is
supported by your service provider
(see page 90).
Phone or SIM card is locked. Unlock the phone or SIM card
(see page 82).
Call Barring is active. Deactivate Call Barring (see page 86).
Cannot answer a
call.
Call Forwarding is active. Deactivate Call Forwarding (see page 87).
Call Barring is active. Deactivate Call Barring (see page 86).
No ringing for an
incoming call.
Phone is set to not ring for
incoming calls.
Edit the ringtone settings (see page 86).
Problem Possible cause Possible solution