Learn how to see the battery activities on your Samsung Galaxy S4. See how much battery power is used for device activities. From a Home screen,
Learn how to use the application manager on your Samsung Galaxy S4. You can download and install applications from Play Store or create applications
Learn how to use the trusted credentials on your Samsung Galaxy S4. If a certificate authority (CA) certificate gets compromised or for some reason
Learn how to verify apps on your Samsung Galaxy S4. This feature allows to either block or warn before installing apps that cause harm to your phone.
Learn how to install apps from the unknown sources on your Samsung Galaxy S4. This feature allows to download and install non-Market applications.
Learn how to use the device administrator on your Samsung Galaxy S4. The Device Administration feature allows to select one or more administration
Learn how to make the passwords visible on your Samsung Galaxy S4. When enabled, password characters display briefly as you touch them while entering
Learn how to use your Samsung Galaxy S4; if you forgot the SIM PIN Password. If you enter wrong SIM PIN more than 3 times, you will need to contact
Learn how to setup the SIM card lock on your Samsung Galaxy S4. Prevent another user from using your SIM card to make unauthorized calls
Learn how to setup or change password on your Samsung Galaxy S4. This option to set up password when one first required or change current password.
Learn how to encrypt your Samsung Galaxy S4 for security. To require a numeric PIN or password to decrypt your phone each time you power it on
Learn how to use the location services on your Samsung Galaxy S4. This services settings allow to set up how the phone will determine your location