Turn on flashing LED notification for wireless coverage
You can set the LED indicator to notify you when your BlackBerry smartphone is connected to a wireless network.
On the home screen or in a folder, click the Options icon.
Click Display > Screen Display.
Select the LED Coverage Indicator checkbox.
key > Save.
When your smartphone is connected to the wireless network, the LED flashes green.
To turn off the wireless coverage notification, clear the LED Coverage Indicator checkbox.