117Encrypt External SD CardAs a security measure, you can encrypt the contents of aninstalled SD card, and require a password each time youaccess the card.1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Encrypt external SD card to start encryption.Follow the prompts to complete encryption.SIM Card LockSet Up SIM Card LockAs a security measure, you can choose to lock the SIM card,and require a PIN to use the phone.1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Set up SIM card lock for these settings:• Lock SIM card: Enable to require a PIN be entered to use thephone. Set the PIN.• Change SIM PIN: Create a PIN for accessing the SIM card.PasswordsWhen this option is enabled, password characters displaybriefly as you enter them.1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Make passwords visible to enable or disable briefdisplays of password characters.Device AdministrationView or disable device administrators. Some applications,such as Corporate email, may require you allow access toyour device by device administrators in certaincircumstances, such as if your phone is lost or stolen.Some features a device administrator might control include:• Setting the number of failed password attempts before the phoneis restored to factory settings• Automatically locking the phone.• Restoring factory settings on the phone.