uqmi

Downloading file to your router:

Go to the file, right click on Download button and select Copy link addess.
Then paste the link in your router after wget. Install with opkg.

wget https://github.com/mrhaav/openwrt/raw/master/21.02.1/uqmi_2021-12-22-0.4_mipsel_24kc.ipk
opkg install uqmi_2021-12-22-0.4_mipsel_24kc.ipk