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Accessibility Enable your installed accessibility services, and adjust related
settings.
Developer
options
Set options for application development. For example, you can
display CPU usage on the home screen or set your device to enter
debug mode when USB connections are active.
About phone View information about your device, such as the model number,
firmware version, and signal. You can also update your software to
the latest version.
Status and notification icons overview
Status icons
The following status icons may appear on your screen:
Signal strength
No signal
Roaming
GPRS is available
EDGE is available
LTE is available
NFC is activated
3G is available
Sending and downloading GPRS data
Sending and downloading EDGE data
Sending and downloading 3G data
Network is available
Sending and downloading data
Battery status
The battery is charging
GPS is activated
Airplane mode is activated
The Bluetooth™ function is activated
The SIM card is not inserted
The microphone is muted
The speakerphone is on
Silent mode
Vibrate mode
An alarm is set
Synchronization is ongoing
Problem with sign-in or synchronization
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