82
Problem Possible
causes Possible
solution
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.
Summary of Contents for F107
Page 1: ...F107 UMTS GSM GPRS Mobile Phone User Manual ...
Page 20: ...20 ...
Page 21: ...F107 User Manual 21 ...