Huawei LTE E8372 - 2 G;3 G;LTE Indicator; microSD Card Slot; SIM Card Slot

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 2G/3G/LTE indicator
Indicates the connection status to the Mobile network (connection to the internet).
 Blinking green twice every 2 sec: The LTE E8372 is powered on.
 Blinking green once every 0.2 sec: The software of the LTE E8372 is being upgraded.
 Blinking green once every 2 sec: The LTE E8372 is registered with a 2G network.
 Steady green: The LTE E8372 is connected to a 2G network.
 Blinking blue once every 2 sec: The LTE E8372 is registered with a 3G network.
 Steady blue: The LTE E8372 is connected to a 3G network.
 Blinking cyan once every 2 sec: The LTE E8372 is registered with a LTE network.
 Steady cyan: The LTE E8372 is connected to a 4G/LTE network.
 Off: The LTE E8372 has been removed.
 microSD card slot
microSD card holder for the LTE E8372.
 SIM card slot
Subscriber Identity Module (SIM) card holder for the LTE E8372.