230To change an existing SIM Card PIN:1. Tap Change SIM PIN.2. Enter the old SIM PIN code and tap OK.3. Enter the new SIM PIN code and tap OK.4. Re-type the new SIM PIN code and tap OK.Password SettingsWhen you create a device password you can also configurethe device to display the password as you type it instead ofusing an asterisk (*).1. From the main Settings page, tap Security.2. Tap Make passwords visible to activate this feature.When enabled, a check mark appears in the checkbox.Device AdministrationTo add or remove device administrators:1. From the main Settings page, tap Security.2. Tap Device administrators to begin configuring thissetting.3. Select an administrator device and follow the prompts.Unknown SourcesBefore you can download a web application you must enablethe Unknown sources feature (enables downloading).Developers can use this option to install non-Play Storeapplications.1. From the main Settings page, tap Security.2. Tap Unknown sources to active this feature.An informational pop-up displays.3. Read the message and tap OK to allow installation ofnon-Google Play applications.When enabled, a check mark appears in the checkbox.Warning! Enabling this option causes your tablet and personaldata to be more vulnerable to attack by applicationsfrom unknown sources.Note: If you are notified that you can not download a PlayStore application because it comes from an “Unknownsource”, enabling this option corrects this issue.
