GALAXY S4 HOME SCREENS HOW TO
GALAXY S4 HOME SCREENS PASSWORD

This sensor uses infrared light to sense your gestures so that you can control the S4 without touching it. These kinds of location apps arenât available yet, but likely will be soon. In combination with WiFi and GPS, they can also be used for indoor navigation and location apps, for example, mapping out shopping malls, museums, and more. But thatâs not necessarily their most important uses. The obvious use of these sensors is for weather and related apps. For example, the S4 uses the gyroscope in concert with the accelerometer to interpret motion gestures you make and let you operate the phone by waving your hands. This measures motion and is used for a host of features. Itâs used for compass apps and can also work with the accelerometer. Measures the strength and direction of the Earthâs magnetic field. Search for it on Google Play, as described on Using Google Play Store.)

Thereâs even an app that works with the phoneâs magnetometer to detect potholes as you drive, and create a log about their locations, which you can then email to your local department of public works. But clever app makers use it for other things as well, such as automatic collision notification, which detects when youâre in an accident and then automatically makes a call for assistance for you. The Galaxy S4 uses the accelerometer to sense the orientation of the screen and turn it to either landscape or portrait mode. As its name implies, this sensor measures acceleration and motion. So in bright light, it makes the screen brighter and easier to see: in dim light, it makes the screen dimmer, since bright light is not needed.Īccelerometer. Senses the light level and adjusts your screenâs brightness as a way to save battery power. It does this to save power, and so you donât accidentally touch the screen while talking and perform some unwanted task.Īmbient light sensor. It senses when your face is close to it during a phone call and automatically turns off and blanks the touch screen as you keep talking. Have you ever noticed that when youâre talking on your S4, the screen often goes blank? Thatâs thanks to the proximity sensor.

GALAXY S4 HOME SCREENS HOW TO

(See Screen lock for details on how to set up a PIN.)

GALAXY S4 HOME SCREENS PASSWORD

If youâve set up a PIN on your phone so that only someone with a password can use it, youâll have to type in the PIN before you can use your phone. Youâll get notifications about missed calls, text messages, and so on. Your Galaxy S4 is now ready to do your bidding. Then put your fingertip on the screen and slide it to the right or left. When you again want to use the Galaxy S4, youâll need to unlock it. You can still get phone calls and text messages, and even listen to music while the screen is locked. While the screen is locked, the Galaxy S4 still operates behind the scenes, checking email and Facebook on schedule. In fact, every time you leave the phone untouched for a certain amount of timeâas little as 15 seconds to as much as 10 minutes ( Brightness)âthe screen automatically locks itself. Always lock the screen before putting the Galaxy S4 in your pocket or bag to avoid accidental screen taps and potentially embarrassing unintended phone calls. It blacks out, indicating that the screen is locked. When you put the Galaxy S4 on Standby using the Power/ Lock button, the screen stops responding to touch.

Galaxy s4 home screens