Sharp AQUOS Crystal - Manual (Page 97)

Your Phone Interface 88
Main Status Icons
Icon Status
Bluetooth
®
active
Bluetooth ® connection
GPS active
Wi-Fi ® active
downloading
vibrate
silent
speakerphone active
network (full signal)
network (roaming)
Out of service area
Sprint Spark enhanced 4G LTE data service
3G (data service)
airplane mode
alarm set
battery (charging)
battery (full charge)