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Knowing the Basics
Monitoring the Phone Status
The status bar at the top of the home screen provides phone and
service status with various icons. Below are some of the icons
you may see.
Signal strength
No signal
Mobile data in use
Flight mode
USB tethering is on
Bluetooth on
Ringer off
Connected to a Wi-Fi network
Vibrate mode
Alarm set
Battery full
Portable Wi-Fi hotspot
New Email
New SMS / New MMS
New Gmail message
Open/Close the Notification Panel
Notifications report the arrival of new messages, calendar
events, and alarms, as well as ongoing events, such as when
you've configured your phone as a Wi-Fi hotspot. You can open
the notification panel to view the details of notifications.