4g-ufi-xx Driver Here

ip link show You should see wwan0 or usb0 . Using ModemManager + NetworkManager:

# 4G-UFI-XX DefaultVendor=0x05c6 DefaultProduct=0x9091 MessageContent="5553424312345678000000000000061b000000020000000000000000000000" Then run: 4g-ufi-xx driver

If you have a (or similar Android-based USB 4G stick/dongle), Linux often doesn’t auto-load the right driver. Here’s how to prepare the driver environment so the modem is recognized as a network interface (instead of just storage or ADB). 1. Identify the device Plug in your UFI stick and run: ip link show You should see wwan0 or usb0

lsusb -t sudo apt update sudo apt install usb-modeswitch usb-modeswitch-data modemmanager wvdial 3. Switch from storage to modem mode Many UFI sticks start as a CD-ROM. Use usb_modeswitch manually if needed. Find your idVendor:idProduct (e.g., 05c6:9091 ). Use usb_modeswitch manually if needed

Create a rule (example):

sudo modprobe qmi_wwan echo "05c6 9003" | sudo tee /sys/bus/usb/drivers/qmi_wwan/new_id Make it permanent with a udev rule:

4G, UFI, USB modem, Linux, driver, RNDIS, QMI, ECM