User's Manual

Troubleshooting
132
Troubleshooting
Network not
displayed.
SIM card not installed
correctly.
Ensure that the SIM card is inserted
correctly (see page 43).
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 118).
Phone or SIM card is locked. Unlock the phone or SIM card
(see page 121).
Call Barring is active. Deactivate Call Barring (see page 114).
Cannot answer a
call.
Call Forwarding is active. Deactivate Call Forwarding (see
page 115).
Call Barring is active. Deactivate Call Barring (see page 114).
No ringing for an
incoming call.
Phone is set to not ring for
incoming calls.
Edit the ringtone settings (see page 113).
Problem Possible cause Possible solution