Mitsubishi Electric M420i User Manual page 90

Phone lock code
A phone lock code is supplied with the phone for security purposes. It prevents unauthorised
access to the phone and some of its features.
The default code is 0000. We suggest that you change this code and keep the new one in a
safe place.
Once this feature is activated, the code is requested each time the phone is turned on.
To change the phone lock code:
1
Press the [Menu] key. Select Settings.
2 Select Security.
3 Phone lock change
Select
4 OK
Press to validate the new code.
To activate/deactivate the phone lock code:
1
Press OK. Select Settings.
2 Select Security.
3 Phone lock enable
Select
code has been enabled) and enter your
Emergency calls can still be made when phone lock is activated.
PIN code
Your SIM card was provided with a 4 to 8 digit PIN code for protection against unauthorised
use. When enabled, the PIN code is required each time you turn your mobile on. If an incorrect
PIN code is entered three times in succession, your SIM card will be blocked. The 8 digit PUK
code is then required to unblock your phone. Please contact your service provider for this code.
To activate the PIN protection:
1
Press the [Menu] key. Select Settings.
2 Select Security.
3 PIN enable
Select (if the code has been disabled) or
PIN
enabled) and enter your
To change the PIN code (PIN must first be enabled):
1
Press the [Menu] key. Select Settings.
2 Select Security.
3 PIN change
Select and follow the information displayed.
4 OK
Press to validate your new PIN code.
PIN2 code
PIN2 code prevents unauthorised access to some of the mobile features (e.g. activating/deac-
tivating FDN operations, modifying the FDN Phone book, setting calls costs to zero, modifying
the costs display features). This code can be changed but not be activated or deactivated.
Please contact your service provider for your PIN2 code. To change the PIN2 code:
1 Press the [Menu] key. Select Settings.
2 Select Security.
3 PIN2 change
Select and follow the information displayed.
4 OK
Press to validate your new PIN2 code.
PUK code
The PUK (PIN unblocking key) is an 8 digit code supplied by your service provider. It is used to
unblock the phone when an incorrect PIN code has been entered three times in succession. A
PUK code cannot be changed.
When prompted, enter the PUK code and select OK. You are then requested to enter a new PIN
code. Follow the prompts displayed to reset the PIN code.
If you have entered an incorrect PUK code 10 times in succession your SIM card will be permanently blocked.
Contact your service provider for a new card.
and follow the instructions displayed.
(if the code has been disabled) or
Phone lock code.
PIN disable
code.
Settings
90-
Phone lock disable
(if the
(if the code has been