A 3G Netsetter dongle cannot be upgraded to 4G through software because its internal chipset is built specifically for 3G frequencies. To access 4G speeds, you must replace the hardware. Purchase a new Idea 4G Netsetter

Let’s be brutally honest. If you are googling "Idea 3G netsetter upgrade to 4G" out of loyalty to Idea, you may want to reconsider.