To upgrade an Idea 3G Netsetter (or SIM) to 4G, you must replace the hardware and the SIM card, as 3G devices are not physically compatible with 4G network frequencies. Upgrading Your Idea SIM to 4G
While you can often keep your phone number, the physical SIM must be replaced to support 4G data speeds.
Visit a Retail Store: Go to the nearest Vi (Vodafone Idea) store with a valid government ID (like an Aadhaar or Voter ID).
Request a SIM Upgrade: Ask the representative to upgrade your existing 3G SIM to 4G.
Activation: The new SIM typically takes 12 to 18 hours to activate once the paperwork is processed. Hardware and Device Requirements idea 3g netsetter upgrade to 4g
Replace the Netsetter: If you are using a 3G Netsetter dongle, it cannot be "software upgraded" to 4G. You must purchase a new Idea 4G Netsetter or a 4G-compatible Wi-Fi dongle.
Device Compatibility: Ensure the device you are using (laptop or phone) also supports 4G LTE bands.
Software Settings: If your device already has 4G hardware but is stuck on 3G, you can manually change the network mode in Settings > Network & Internet > Mobile Network > Preferred Network Type and select 4G or LTE. The 3G mobile network switch off – what you need to know
A common urban legend is: "Just swap your old 3G SIM with a new 4G SIM and it will work." To upgrade an Idea 3G Netsetter (or SIM)
Reality check: The SIM card provides authentication credentials to the network. The device provides the radio. A new 4G SIM in a 3G Netsetter will authenticate successfully on the network (if the network still offers 3G fallback), but the device will still only connect via 3G. Once the network drops 3G, authentication fails because the device cannot speak the 4G radio language.
Some older 3G Netsetters had "combo" SIMs that supported both 3G and 4G profiles. Even then, the hardware limits the connection to 3G.
This is the most critical factor. The Indian government and telecom operators (Jio, Airtel, Vi) have completely phased out 3G networks to refarm spectrum for 4G and 5G.
What does this mean for your 3G Netsetter? Even if you insert a 4G SIM, the device will search for a 3G signal. In most places, it will find nothing. At best, it might latch onto a weak, residual 2G signal (for voice, not data). Your 3G Netsetter is essentially a paperweight for data connectivity in 2025 and beyond. Part 5: The SIM Swap Myth A common
This is the most common and cheapest method. Idea (now Vi) allows you to keep your existing data plan or prepaid balance while changing the device.
What you need:
The Process:
192.168.1.1), and set the APN to www (Vi’s standard APN).Result: You now have 4G speeds using your old Idea account. Cost? The price of a new dongle (~₹1,000 to ₹2,500).
Pro Tip: Buy a 4G LTE USB dongle that supports Band 40 and Band 41 – those are Vi’s strongest frequency bands in India.