AT&T 5U000249C0A Cell Phone User Manual


 
80
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  xed dialing, see page 34.
Reset
Resetting the phone
1. Press Menu > Settings > Reset.
2. Enter password > Master Reset.
note:
It will return con 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’.