Operation Manual

F107 User Manual
Confidential and Proprietary Inform
ation of ZTE CORPORATION
29
Problem
Pos
sible causes
Possible solution
Call barring
Settings > Call > Call
barring
Cancel all
call barring
Call barring
Settings > Call > Call
barring
Cancel all
call barring
Fixed dial
numbers
Settings > Security > Fixed
dial numbers
Off
If you are not able to connect to the
network, the phone will continue to
send out signals as it attempts to
locate a base station. Doing so
con
sumes battery power and will
consequently shorten standby time.
Change your location to one where
the network is accessible, or
temporarily turn off your phone.
Cannot switch your phone on
Battery power has been depleted.
Recharge the phone’s battery.
US
IM card error
USIM card malfunction or damage.
Take the USIM card to your service
provider for testing.
USIM card inserted improperly.
Insert the USIM card properly.
Debris on the USIM card contacts.
Use a soft, dry cloth to clean the
USIM card contact
s.
Unable to connect to the network
USIM 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.
Cannot answer incoming calls
You have activated the
feature.
Go to
, and then select
.
You cannot make outgoing calls.
You have activated the
featur
e.
Go to
, and then select
.
You have activated the
feature.
Go to
and select
.
PIN Code blocked
You have entered an incorrect PIN
code t
hree consecutive times.
Contact your service provider. If the
service provider provides the USIM
card’s PUK code, use the PUK code
to unlock the USIM card.
Unable to enter information into the
phone book
The phone book’s memory is already
full.
Delete unn
ecessary data from the
contacts.