Sony Ericsson R300 Benutzerhandbuch

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Phone lock
The phone lock protects the phone against unauthorized use 
if it is stolen and the SIM card is exchanged. You can change 
the phone lock code (which is 0000 by default) to any four-digit 
personal code. If the phone lock is set to 
Automatic
, you do 
not need to enter your phone lock code until a different SIM 
card is inserted in the phone.
To turn the phone lock on
1
From standby select 
Menu
 > 
Settings
 > the 
General
 tab 
Security
 > 
Phone lock
 > 
Protection
 > 
On
.
2
Enter the phone lock code and select 
OK
.
To edit your phone lock code
1
From standby select 
Menu
 > 
Settings
 > the 
General 
tab 
Security
 > 
Phone lock
 > 
Change code
.
2
Enter the current code and select 
OK
.
3
Enter a new code and select 
OK
.
4
Re-enter the new code to confirm and select 
OK
.
To unlock the phone
1
From standby select 
Menu
 > 
Settings
 > the 
General 
tab 
Security
 > 
Phone lock
 > 
Protection
 > 
Off
.
2
Enter your phone lock code and select 
OK
.
If you forget your new code, you have to take your phone 
to your local Sony Ericsson retailer.
This is the Internet version of the User's guide. © Print only for private use.