Lock the memory card
To set a password to lock your memory card to help prevent
unauthorized use, select
Options
>
Set password
.
You are asked to enter and confirm your password. The password can be
up to eight characters long. The password is stored in your phone and
you do not have to enter it again while you are using the memory card
on the same phone. If you want to use the memory card on another
phone, you are asked for the password.