Huawei E3272 - Understanding LED Indicator Status

 Indicator (LED)
It indicates the status of the USB-Modem.
 Green, blinking twice every 2s: The USB-Modem is powered on.
 Green, blinking once every 0.2s: The software of the USB-Modem is being
upgraded.
 Green, blinking once every 2s: The USB-Modem is registering with a 2G network.
 Cyan, blinking once every 2s: The USB-Modem is registering with a 3G/3G+
network.