BenQ M300 - Manual (Page 137)

Troubleshooting 123
Unable to
connect to the
network.
• SIM card invalid. Contact your network
operator.
• You are not within the
network's service area.
Check the service area with
your network operator.
• 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 the menu Settings →
Call Settings → Call
Barring, and then select
Cancel All.
You cannot
make
outgoing
calls.
• You have activated the
Call Barring feature.
Go to the menu Settings →
Call Settings → Call
Barring, and then select
Cancel All.
• You have activated the
Fixed Dial Number
feature.
Go to the menu Settings →
Call Settings → Fixed Dial
Number, and then select
Off to turn off this feature.
PIN Code is
blocked.
• You have entered an
incorrect PIN code three
consecutive times.
Contact your network
operator. If the network
operator provides the SIM
card's PUK code, use the
PUK code to unlock the SIM
card.
Battery will
not charge.
• The battery or battery
charger is damaged.
Contact the dealer.
• The phone's temperature
is below 0°C or higher
than 45°C. Adjust the battery charging
environment to avoid
extremes of temperature.
• Poor contact between the
battery and charger.
Check all connectors to
make sure all connections
have been properly made.
Problem Possible cause Solution