Vi (Vodafone Idea) network problems—such as "No Service", sudden call drops, or full signal bars with zero data throughput—usually happen when your SIM gets stuck on a refarmed 3G/2G frequency or loses its www APN gateway route. Follow the three steps below to restore your Vi 4G and 5G connection immediately.
Does your phone keep dropping from 5G/4G down to E (Edge) indoors? Read our guide on locking your phone to high-speed network bands.
Step 1: Clear "No Service" & Stuck Band Handovers
Vi has shut down legacy 3G towers across India to refarm 2100 MHz (Band 1) spectrum for 4G and 5G. If your phone has VoLTE turned off, it can get stranded on a weak 2G Edge channel.
15-Second Radio & VoLTE Reset:
- Enable VoLTE Calls: Open Settings > Mobile Network > Vi SIM and make sure VoLTE Calls (HD Calling) is switched ON.
- Toggle Airplane Mode: Turn on Airplane Mode for 15 seconds and switch it off so your SIM re-registers on Vi's Band 3 (1800 MHz), Band 41 (2500 MHz), or 3300 MHz 5G layer.
Step 2: Configure the Official Vi APN (Android & iPhone)
Full signal bars with dead WhatsApp or UPI data almost always point to a broken APN profile. Apply these official Vi gateway values:
- On Android Phones: Open Settings > Mobile Network > Vi SIM > Access Point Names, create or edit your profile with Name:
Vi Internet, APN:www(orportalnmms), APN Type:default,supl, and APN Protocol:IPv4/IPv6. - On Apple iPhones: Open Settings > Cellular > Cellular Data Network and type
iphone(orwww) in the Cellular Data APN field.
Step 3: Check Local Vi 5G Tower Maintenance & Enable Wi-Fi Calling
When Vi engineers upgrade local neighborhood towers to 5G radio units, single-sector blackouts can last 2 to 4 hours. Turn on Wi-Fi Calling in your phone settings to keep voice calls working over home broadband, and test your restored mobile data speed on our Vi 5G & 4G Speed Test Tool.
Vi (Vodafone Idea) Network & APN Diagnostic Table (2026)
Check the table below for the official Vi SIM settings, USSD codes, and quick fixes for common network faults across India:
Step 4: Manually Re-Select the "Vi India" Network Operator
Travelling across state borders or living near two circle boundaries can leave your SIM stuck on an unauthenticated roaming tower. Open Settings > Mobile Network > Vi SIM > Network Operators and toggle off Select Automatically.
Wait 20 seconds for your phone to scan nearby radio masts, tap Vi India 4G / 5G manually from the list, and switch Automatic Selection back on to clear stubborn "Emergency Calls Only" errors.
FAQ:-
Why is my Vi internet slow indoors but fast on my balcony?
Vi uses high-frequency Band 41 (2500 MHz) and 3300 MHz spectrum for high-capacity data in cities, which weakens quickly through concrete walls. Turning on Wi-Fi Calling or sitting near a window keeps your phone from dropping to slower 900 MHz indoor bands.
Do I need a new SIM card to use Vi 5G in 2026?
No. Your existing Vi 4G USIM card is already compatible with Vi 5G towers—just enable 5G mode in your phone settings in a 5G-enabled city.
How do I report a Vi network outage in my PIN code?
Dial 198 (toll-free) from your Vi SIM, call 9822012345 from another phone, or message Vi Care on WhatsApp at 9654297000 with your 6-digit PIN code.
