Huawei E392 is a popular 4G LTE usb modem all over the world right now. Now let’s us get to know your Huawei E392 USB stick from its connector, slots, and indicators.

1USB Connector

It connects the USB Stick to a PC.

2 Strap Hole

You can tie the cap and the USB Stick together by threading a strap through the strap holes,so that the cap will not be easily lost.

3 Indicator

It indicates the status of the USB Stick.
Green, blinking twice every 2s: The USB Stick is powered on.
Green, blinking once every 0.2s: The software of the USB Stick is being upgraded.
Green, blinking once every 2s: The USB Stick is registering with a 2G network.
Blue, blinking once every 2s: The USB Stick is registering with a 3G/3G+ network.
Cyan, blinking once every 2s: The USB Stick is registering with a 4G network.
Green, solid: The USB Stick is connected to a 2G network.
Blue, solid: The USB Stick is connected to a 3G network.
Cyan, solid: The USB Stick is connected to a 3G+/4G network.
Off: The USB Stick is removed.

4 SIM/USIM Card Slot

Slot for SIM card /USIM (Universal SIM) card.

5 RF Output Power Port
Allows for an external antenna to be connected for enhanced performance, this item will be sold separate.

6microSD Card Slot

Slot for microSD card, microSD card not included.

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