Nokia Lumia 820 User Manual page 29

Signal strength
Your phone isn't connected to a mobile network.
There is no SIM card in your phone.
Your SIM card is locked.
Flight mode is switched on.
Your phone is roaming outside your home mobile network.
Mobile data connection
Single letters, combinations of letters, or combinations of letters and numbers show the type of
mobile network to which you're connected.
Icons that show the network connection type may vary between regions and network service
providers.
An EDGE data connection is open.
A GPRS data connection is open.
Your phone is connected to a 3G network.
A high-speed (HSDPA/HSUPA) data connection is open.
A high-speed (HSPA+/DC-HSDPA) data connection is open.
Your phone is connected to a 4G network.
WiFi connection
A WiFi connection is available.
A WiFi connection is active.
A mobile data connection is shared with other devices over WiFi.
Data is transferred over WiFi.
Bluetooth device
A Bluetooth device is connected to your phone.
Bluetooth is switched on, but your phone isn't connected to a Bluetooth device.
Battery
Battery power level
The battery is charging.
Battery saver mode is switched on.
Battery power or state of the battery isn't currently known.
Notifications
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