you need to have a working internet connection to get the packets (like drivers) your trying to install...
they are all downloaded when running the apt-get install command....
so the process is:
1. connect your computer with wifi or RJ45 cable to the internet
2. tjeck that the connection is working (you can always try ping 8.8.8.8 wich is googles DNS server)
3. follow my video tutorial
4. use your phone as modem everywhere you go.