If you are searching for you are likely facing one of two problems:
You cannot "upgrade" the firmware or software of the 3G dongle to make it 4G. The upgrade is a physical replacement of the device and the SIM plan. idea 3g netsetter upgrade to 4g
If you are holding a 3G Netsetter right now, here is your action plan: If you are searching for you are likely
Your 3G SIM card is physically incapable of connecting to a 4G network. You need a 4G-ready SIM (or USIM) Method 1: Visit a Nearest Vi Store (Recommended) Locate a Store: idea 3g netsetter upgrade to 4g
To give a direct answer to the question "Can I upgrade my 3G Netsetter to 4G?" :