78
Problem
Possible causes
Possible solution
Unable to connect
to the network.
(U)SIM card invalid.
Contact your service provider.
You are not within the network's
service area.
Check the service area with
your service provider.
Poor
signal.
Move to an open space, or if
you are inside a building, move
closer to a window.
You cannot answer
incoming calls.
You have activated the
Call Barring
feature.
Go to
Settings > Call > Call
barring
, and then select
Cancel all call barring.
You cannot
make outgoing
calls.
You have activated the Call Barring
feature.
Go to
Settings > Call > Call
barring
, and then select
Cancel all call barring
.
You have activated the Fixed Dial
Number feature.
Go to
Settings > Security >
Fixed dial numbers
and select
Off to turn this feature off.
PIN Code is
blocked
.
You have entered an incorrect PIN
code three consecutive times.
Contact your service provider.
If the service provider provides
the (U)SIM card's PUK code,
use the PUK code to unlock
the (U)SIM card.
Unable to enter
information into
the phone book.
The phone book's memory is already
full.
Delete unnecessary data from
the Contacts.