145
Troubleshooting
This section tells you what to do if you experience one of these 
problems: 
Problem Solution
You can’t make 
calls.
•
Check the antenna. Is it fully extended and rotated? 
Do you have a clear view of the sky?
•
Did you enter the number in international format? All 
calls made from the Iridium satellite system must be 
in international format.
•
Check the signal strength meter. If the signal is 
weak, move to an open space or, if you are in a 
building, move closer to a window.
•
Check the Network Selection settings.\
•
Check your Operator coverage map.
•
Is Restricted displayed? Check the Call Barring 
setting.
•
Has a new SIM card been inserted? Check that no 
new restrictions have been imposed.
You can’t receive 
calls.
•
Check to see that your phone is powered on.
•
Check the antenna. Is it fully extended and rotated? 
Do you have a clear view of the sky?
•
Check the signal strength. If the signal is weak, 
move to an open space or, if you are in a building, 
move closer to a window.
•
Check the Call Forwarding and Call Barring settings.
•
Check the Ringer setting. If it is off, there is no 
audible ringer. 
You can’t make 
international calls.
Have you included the relevant codes? Press and hold 
the º key to display the international dialing prefix (+) 
and then enter the appropriate country code followed by 
the phone number. 
Your phone won’t 
unlock.
•
Have you inserted a new SIM card? Enter the new 
PIN code.
•
Do you have a replacement phone? Enter the default 
phone unlock code —1234.
•
Have you forgotten the unlock code?
 
Press M to 
change the unlock code (you need your security 
code).
Mobile.book  Page 145  Wednesday, September 9, 1998  3:05 PM