HTC Thunderbolt Cell Phone User Manual


 
Getting started  39
Status and notifications
Status icons
You can tell a lot about your phone by checking the icons in its status 
bar. Here’s what each one means:
Signal strength Battery is full
LTE connected Battery is charging
LTE in use Battery is low (20% remaining)
3G connected Battery is very low (10% remaining)
3G in use Bluetooth is on
1xRTT connected Connected to a Bluetooth device
1xRTT in use Connected to a Wi-Fi network
Roaming Airplane mode
No signal Silent mode
No SIM card installed Vibrate mode
Data synchronizing Phone microphone is mute