27
basics
codes & passwords
Your phone’s 4-digit 
unlock code 
is originally set to 
1234
. If your service provider didn’t change the code, 
you should change it:
Find it: 
M
 > 
Settings
 > 
Security
 > 
New Passwords
If you forget your unlock code:
 At the 
Enter Unlock Code
 
prompt, try entering 
1234
 or the last four 
digits of your phone number.
If you forget other codes:
 If you forget your security 
code, SIM PIN code, PIN2 code, or call barring 
password, contact your service provider.
lock & unlock your 
phone
You can lock your phone to keep others from using it. 
To lock or unlock your phone, you need the 4-digit 
unlock code.
To  
manually lock
 your phone:
Find it: 
M
 > 
Settings
 >
 Security
 > 
Phone Lock
 > 
Lock Now
To  
automatically lock
 your phone whenever you turn 
it off:
Find it: 
M
 > 
Settings
 > 
Security
 > 
Phone Lock
 
> 
Automatic Lock
 > 
On
Note: 
You can make emergency calls on a locked 
phone (. A locked phone still rings or vibrates for 
incoming calls or messages, 
but you need to unlock 
it to answer.