171
Troubleshooting 
I cannot make/
receive calls. 
Make sure that you have a phone signal 
(see the “Signal Strength Indicator” 
item on page 32). Avoid electrical or 
radio interference, and obstructions 
such as bridges, car parks, or tall 
buildings.
Your phone also may have the 
 feature turned on. If you know 
the unlock code, you can change this 
setting in the security menu
(
M
 > 
 > 
'"
).
Also, check to be sure your SIM card is 
installed and working.
My phone has 
poor reception 
and drops calls. 
Make sure that your antenna is not bent 
or damaged.
Also, make sure you have a phone 
signal (see the “Signal Strength 
Indicator” item on page 32). Stay clear 
of any obstructions such as bridges, car 
parks, or tall buildings.
I cannot hear 
others on my 
phone. 
While on a call, press the upper volume 
key on the left side of your phone. Your 
phone display should show the volume 
increasing.
Also, make sure that your phone’s 
earpiece is not blocked by its carrying 
case.
I cannot open my 
inbox. 
Before you can use text or information 
services messages, you must set up the 
appropriate inbox. See “Setting Up the 
Text Message Inbox” on page 109.
2TQDNGO 5QNWVKQP
User.Guide.GSM.book Page 171 Wednesday, February 6, 2002 10:26 AM