Samsung M520 Owner's Manual page 45

Indicates that your phone cannot find a signal.
Displays your current signal strength. The more lines you have,
the stronger your signal.
Indicates your current battery charge strength. (Icon shown
fully charged in idle mode.)
Indicates your current battery charge strength. (Icon shown
fully discharged in idle mode.)
Indicates that your phone is muted and no sound will be heard
through the microphone.
Indicates that key tones have been muted.
Indicates that the speakerphone is enabled.
Indicates that the camera is enabled.
Indicates that the camcorder is enabled.
+
Indicates that the self-timer function is enabled.
+ +
Indicates that the white balance has been set to Auto.
-
Indicates that the white balance has been set to Sunny. This
icon is also used for indicating the brightness level.
Indicates that the white balance has been set to Cloudy.
Indicates that the white balance has been set to Tungsten.
Indicates that the white balance has been set to Fluorescent.
+
Indicates that the white balance has been set to Manual.
-
Indicates that a video or voice memo is currently being
recorded.
Indicates that a voice memo or video has been paused.
Section 2A: Phone Basics 19