Motorola M900 ユーザーガイド

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Troubleshooting - 65 
 
Troubleshooting
 
Check these questions first if you have problems with your phone. If you need 
additional help, contact the Motorola Customer Call Center. 
 
Problem
 
Solution 
Is your phone set up 
correctly?
 
Press 
 
. If you do not see your 
phone number, contact your service provider
 
Does the handset have a 
signal? Do you see
 
 in 
the display? 
Make sure that your antenna is fully extended. The 
signal strength indicator should have at least one 
segment showing ( ). If it does not, move to an 
area with a stronger signal to use your phone.
 
Is the earpiece volume too 
low? 
While on a call, press the upper volume key on the 
side of your phone.
 
Is the other party unable 
to hear you? 
Make sure that your antenna is fully extended and 
that your phone is not muted. Press 
UNMUTE
 
(
to cancel the mute. 
Also, make sure that your phone’s carrying case or 
a sticker is not blocking its microphone.
 
 
The following refer to specific problems:
 
 
Problem
 
Solution
 
My phone was stolen. To 
whom should I report 
this? 
Report a stolen phone to the police and to your 
service provider (the company that sends you your 
monthly wireless service bill).
 
I forgot my password. 
See page 38.
I pressed the power key, 
but nothing happened. 
Be sure to press and hold 
 (the power key) 
until the display appears and you hear an alert. 
This could take several seconds.
 
The display says: 
Enter 
Unlock Code
. How do I 
unlock my phone? 
Enter the factory-preset unlock code (1234), or the 
last four digits of your phone number. If this fails, 
call your service provider (the company that sends 
you your monthly wireless service bill).