If the phone displays
Insert SIM card
even
though the SIM card is properly inserted, or
SIM card not supported
, contact your service
provider. Your phone does not support 5-V SIM
cards.
Nokia 6651 User Guide
17
Copyright © 2004 Nokia
• THE ANTENNA
Hold the phone as you would any other telephone with the antenna
pointed up and over your shoulder.
Your phone has both an internal and an external
antenna. As with any other radio transmitting
device, do not touch either of the antennas (blue
area in picture) unnecessarily when the phone is
switched on. Contact with the antenna affects
call quality and may cause the phone to operate
at a higher power level than otherwise needed.
Not touching the antenna area during a phone
call optimizes the antenna performance and the
battery life.
• ACCESS CODES
•
Security code: This code is supplied with your phone. The security
code protects your phone against unauthorized use. The preset code
is 12345. Change the code and set the phone to request it using the
Access codes
and
Security level
functions in the
Security settings
menu (see page
63
). Keep the new code secret and in a safe place
separate from your phone.
•