Samsung Galaxy SII User Manual page 37

Displays when connected to the 3G network.
3G indicator is only seen when roaming.
Displays when your phone is communicating
with the 3G network. 3G indicator is only seen
when roaming.
Displays when connected to the HSPA+ network.
Displays when your phone is communicating with
the HSPA+ network.
Displays when the phone has detected an
active USB connection and is in a USB Debugging
mode.
Displays when there is a new text message.
Displays when an outgoing text message has
failed to be delivered.
Displays when there is a new voicemail message.
Displays when there is a new visual voicemail
message.
Displays in the notifications window when there
is a new Email message.
Displays in the notifications window when there
is a new Gmail message.
Displays when a new Google+ notification has
been received.
Displays when the T-Mobile Name ID application
did not recognize a recent number and would like
to know whether you wish to Not add, or add
as a New or Existing number.
Displays when the time and date for a Calendar
Event has arrived. For more information, refer to
"Calendar" on page 177.
Displays when an alarm is set.
For more information, refer to "Clock" on page 180.
Displays when the device is in Silent mode.
All sounds except media and alarms are silenced,
and Silent mode is set to Vibrate. For more
information, refer to "Silent mode via Device
Options Screen" on page 255.
Understanding Your Device 32