You can only lock the application if you have set up the Unlocking password.
Method to set up the ’Unlocking password’:
- Press the ‘Select’ button and choose the ‘Set-up’ option.
- Select the option ‘User set-up’.
- Set the ‘Unlocking password’ parameter.
You can now lock the application by pressing the ‘Select’ button and choosing the ‘Lock’ option. To access the application again, you need to enter the set password.