Operation Manual

126
Problem Possible causes Possible solution
• USIM card
malfunction or
damage.
Take the USIM card to
your service provider
for testing.
• USIM card inserted
improperly.
Insert the USIM card
properly.
USIM
card error
• Debris on the USIM
card contacts.
Use a soft, dry cloth to
clean the USIM card
contacts.
• USIM card invalid. Contact your service
provider.
• You are not within
the network’s
service area.
Check the service area
with your service
provider.
Unable to
connect
to the
network.
• Poor signal. Move to an open
space, or if you are
inside a building, move
closer to a window.