Common driver .inf from ZTE:
You can extract these from the official ZTE driver pack:
Search for ZTE_MF833T_driver_Windows.zip from ZTE’s support site or your ISP’s download section.
| Check | Command |
|-------|---------|
| USB mode | lsusb \| grep 19d2 → should show 1405 |
| Kernel modules | lsmod \| grep -e cdc -e qmi |
| Network interface | ip a show zte0 |
| DHCP lease | dhclient -v zte0 or check syslog |
| AT commands | screen /dev/ttyACM0 or minicom -D /dev/ttyZTE | zte mf833t driver top
If the modem exposes QMI (check with lsusb -v | grep bInterfaceClass looking for 0x02/0x0d):
Install libqmi tools:
apt install libqmi-utils udhcpc
Script to start QMI connection:
/usr/local/bin/zte-qmi-up
#!/bin/bash
DEVICE="/dev/cdc-wdm0"
APN="internet" # Change to your carrier's APN
qmi-network $DEVICE start
qmi-network $DEVICE status Common driver
Ensure required kernel modules are loaded.
For ECM mode:
modprobe cdc_ether
modprobe cdc_acm
For QMI mode (if your firmware supports it):
modprobe qmi_wwan
modprobe option
Auto-load at boot:
Add to /etc/modules or create /etc/modules-load.d/zte.conf: You can extract these from the official ZTE
cdc_ether
cdc_acm