LG U8290 User Manual page 173

Settings
- None: Cancels lock function.
3.4.3 Change codes
You can change PIN, PIN2, the mobile phone
password and the call barring password.
3.4.3.1 PIN code
PIN is the abbreviation of Personal Identification
Numeric, and is used to restrict the use of an
unauthenticated user.
PIN Password Change Procedure
1. Select 'PIN' from the 'Change code' list and then
press [Select].
2. Input the current PIN,and press [Select].
3. Input the new PIN,and press [Select].
4. Input the new PIN once again,and press [Select ].
- If the PIN is different from that of step 3, the procedure
is restarted from step 3.
5. When the PIN is properly changed, a "Successfully
Changed" message as well as new PIN code
appears. With an incorrect PIN input in step 2, the
procedure is restarted from step 2, and the
remaining allowed numeric of input attempts is
decreased by 1.
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6. Press the Back key in the PIN code input window to
return to the previous step.
* 3 incorrect PIN code entries in the PIN code input
window would invalidate the PIN code. In this case,
you have to input the PUK (PIN Unblock Key) code to
configure the PIN code again. The maximum allowed
numeric of attempts of PUK input is 10 times. 10
occasions of incorrect PUK entries would limit the
mobile phone use.
3.4.3.2 PIN2 code
PIN2 is the abbreviation of Personal Identification
Numeric 2, and is used to restrict the use of
unauthenticated users like PIN. PIN2 numeric change
procedure is the same to that of PIN. 3 incorrect PIN2
code entries would invalidate the PIN2 code. In this
case, you have to input PUK2 to use the PIN2 code
again. The maximum allowed numeric of attempts of
PUK2 input is 10 times, like PUK1. 10 incorrect PUK2
entries would invalidate the PUK2.
3.4.3.3 Security code