Huawei: E3372 Firmware

If you have a "Stick" model (serial interface), you can use a terminal like PuTTY to send commands.

Also known as "Modem Mode," this version requires a connection manager (like MTS Connect) on your computer. It exposes raw serial ports and AT-style interfaces, which is often preferred by advanced users for use with OpenWRT routers or MikroTik devices. Why Update or Flash Your Firmware? Updating your Huawei E3372 firmware can offer several benefits:

mmcli -L # finds /org/freedesktop/ModemManager1/Modem/0 mmcli -m 0 --simple-connect="apn=internet" huawei e3372 firmware

lsusb -v 2>/dev/null | grep -E "idProduct|bcdDevice"

ATI AT^HWVER? AT^FIRMWARE?

Look at the label under the back cover (or check the Device Manager in Windows). It will clearly state Model: E3372h or Model: E3372s .

| Variant | Identifier | USB Composition | Interface | |---------|------------|----------------|------------| | | E3372h-153 | 12d1:14dc | Web UI at 192.168.8.1; acts as router with NAT | | Stick / Modem (NDIS) | E3372h-607 | 12d1:155e | Direct modem (MBIM or NCM); passthrough mode | If you have a "Stick" model (serial interface),

The is a popular 4G/LTE USB modem (dongle) used for mobile broadband connectivity. Its behavior—whether it acts as a standard mass storage device containing drivers or as a pure network interface—is determined entirely by its firmware .

typically ships with one of two distinct firmware "platforms." Knowing which one you have is crucial before attempting any updates or modifications. Why Update or Flash Your Firmware

This is the modern, user-friendly standard. The modem acts like a mini-router, appearing as an Ethernet device to your computer. It features a built-in web interface (usually at 192.168.8.1 ) where you can manage SMS, USSD, and network settings without special software.