At the Home screen, tap Security.
At the Security screen, tap Menu.
Select Toolbox.
Enter the 4-digit master code.
On the Toolbox (1 of 3) screen, tap User Management.
The Users Management screen displays 3 users at a time. Use the ↓ and ↑ arrows to scroll through the list.
Tap the user to change open that users settings.
Ensure that the current user code appears. Then tap Change Pin.
Enter a new 4-digit code.
Press OK.
Enter the 4-digit code again to confirm.
Press OK.
A confirmation screen appears, showing that the user code was changed. Tap OK.