BenQ M555C - Manual (Page 153)

137 What to do if...
You can’t
switch your
phone on • Battery has run out. Recharge the battery if
necessary.
SIM card
error
• SIM card is out of order. Send it to your network
operator for test.
• SIM card is not inserted
properly.
Insert SIM card correctly.
• SIM card contacts are
dirty.
Clean the SIM card
contacts using a soft, dry
cloth.
You can’t
connect to
the network • SIM card is invalid. Contact your network
operator.
• You are away from the
service area.
Check the service area with
your network operator.
• Poor signal. Move to an open space or, if
you are in a building, move
closer to a window.
You can’t
send
messages • Your network operator
does not support this
service.
Contact your network
operator.
You can’t
answer
incoming
calls. • You have put certain
kind(s) of calls on the
blacklist.
Go to the menu: Settings --
> Security settings -->
Blacklist --> Blacklist
settings , and turn off the
option.
• You have barred
incoming calls.
Go to the menu: Settings --
> Security settings -->
Handset call barring -->
Bar incoming , and turn
the option off.
• You have asked the
operator to bar certain
types of incoming calls.
Go to the menu: Settings --
> Security settings -->
Network call barring , and
select Clear all .
Problem Possible cause Solution