AT&T 5U000249C0A Manual Do Utilizador

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Locking the keypad automatically
You can set locking keypad automatically to prevent mistaken 
key presses.
1. Press 
Menu 
Settings 
Security 
>
 External Auto Key 
Lock
.
2. Select 
On
.
Unlocking Auto Key Lock
1. Press 
Menu 
Settings 
Security 
>
 External Auto Key 
Lock
.
2. Select 
Off
.
Changing hidden key
The hidden key is a security code for USIM Contact. You can 
lock the person’s information in the USIM Contacts with the 
hidden key.
1. Press 
Menu
 > 
Settings
 > 
Security
 > 
Change Hidden 
Key
.
note: The default password is dependent by SIM card.
(either depends on the SIM card or determined by the SIM 
card).
To enable fixed dialing 
Enabling and disabling
1. Press 
Menu 
>
 Settings 
>
 Security 
>
 FDN
2. Select 
On
 or 
Off
.
For details on fi xed dialing, see page 34. 
Reset
Resetting the phone 
1. Press 
Menu
 > 
Settings
 > 
Reset
.
2. Enter password > 
Master Reset
.
note: It will return confi guration settings to default. The 
default password is ‘1234’.
Clearing the phone 
1. Press 
Menu
 > 
Settings
 > 
Reset
.
2. Enter password > 
Master Clear
.
note: It will change the setting as default and erase all 
personal data. The default password is ‘1234’.