To use your Vodafone Smart First 6 as an internet modem, do the following
- Download and install the Vodafone Smart First 6 driver here onto your computer
- Connect your phone to your computer
- On your phone - navigate to Settings > under Wireless & Networks tap More > tap USB Tethering > (you may have to select Window...) > turn on USB tethering.
- Wait for in to finish any driver installation
- After that you should be connected
Ask any other question you may have on this here and we will gladly help further :)