The first place to look for drivers is the official ZTE website. You can try searching there for the MF833T model:
Do not download from random "driver download" websites—they often bundle malware. zte mf833t driver top
#!/bin/bash
DEVICE="/dev/cdc-wdm0"
APN="internet" # Change to your carrier's APN
Final Notes
The ZTE MF833T is generally well-supported by modern Linux kernels (≥4.9). Most issues stem from incorrect mode switching. If your unit still doesn't work after implementing the above, check if it's a newer variant with RNDIS – in that case, use usbnet + rndis_host instead. zte mf833t driver top
You should see a new active interface named "ZTE Network" or "NDIS." zte mf833t driver top