The following icons might appear in the upper-right corner of the home screen to indicate the wireless coverage level that your BlackBerry device currently has.
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The number of solid bars indicates the strength of the mobile network signal. If the signal is weak, your device might use more power to try to maintain the connection. |
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Your device is connected to the network type shown and can access all of the features of your mobile network plan. |
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Your device is connected to the network type shown but the network functionality is limited. You're likely able to make a phone call, but not able to access the Internet or view email messages. |
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You have no mobile network coverage. |
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Your device is roaming. Extra charges might apply. |
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BlackBerry services, such as email messaging and Internet browsing, are available. |
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The number of solid waves indicates the strength of the Wi-Fi signal. If the signal is weak, your device might use more power to try to maintain the connection. |
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Your device is in airplane mode and all of your wireless network connections are off. You can turn on Wi-Fi or Bluetooth technology, but not your connection to the mobile network. |
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There is an error with your SIM card. For
information on what the error is, from the top of the home
screen, swipe down. Tap 
Settings > Network
Connections > Mobile
Network. |
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You can only make emergency calls. |
The following icons appear in the upper-left corner of the home screen if your device is connected or trying to connect to another device using Mobile Hotspot mode, Internet tethering, Bluetooth technology, or NFC.
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Mobile Hotspot mode is on. If the icon is solid, Mobile Hotspot is connected. |
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Internet tethering is on. If the icon is solid, your device is connected to another device. |
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Bluetooth technology is on. If the icon is solid, Bluetooth technology is connected. |
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NFC is on. |