Your phone supports 5G, you live in a city with Airtel 5G Plus coverage, yet the status bar stubbornly shows 4G. This is one of the most common complaints from Airtel users in India — and the fix is usually a settings change, not a network problem. This guide walks you through how to fix Airtel 5G not working, step by step, from the 30-second checks to the deeper causes like missing software updates and SIM slot issues.
First, the basics that trip up most people: Airtel’s 5G (branded 5G Plus) works on your existing 4G SIM — you do NOT need a new SIM, a fact Airtel itself has confirmed. Airtel uses non-standalone (NSA) 5G, which means your phone needs a solid 4G signal underneath to latch onto 5G. If your 4G signal is weak, 5G will not appear either. If you are searching for airtel 5g not working, start with these basics before touching any setting.
Step 1: Airtel 5G Not Working? Confirm These Three Requirements First
Before changing anything, verify all three prerequisites. One: you need a 5G-capable phone — check your phone’s specifications on the manufacturer’s website, not just the box marketing. Two: you need to be in an Airtel 5G coverage area. Open the Airtel Thanks app and check the network coverage map, or simply ask someone nearby with working Airtel 5G. Coverage is still patchy in many localities even within “5G cities” — being two streets away from a 5G tower can be the difference.
Three: your phone’s software must support Airtel’s 5G bands. Some phones shipped before their 5G software update and need an OTA update from the manufacturer before 5G works at all. Getting these three right solves most cases of Airtel 5G not working.
Step 2: Set the Correct Network Mode
This is the fix that works most often for airtel 5g not working. On Android: open Settings, go to SIM card & mobile network (or Connections > Mobile networks on Samsung), select your Airtel SIM, tap Preferred network type, and choose 5G/4G/3G/2G (auto) or 5G preferred. If it was set to “4G/3G/2G auto” or “LTE only”, your phone was simply never allowed to look for 5G. Wait 2–3 minutes after changing it — the phone needs time to scan and register.
On iPhone: go to Settings > Mobile Data > Mobile Data Options > Voice & Data, and select 5G Auto. The “5G On” option forces 5G always (draining battery faster), while “5G Auto” uses 5G only when it meaningfully improves speed — the smarter choice. Also enable “Data Mode: Allow More Data on 5G” if you want full-speed 5G performance.
A related check: make sure your phone supports Airtel’s actual 5G bands. Airtel’s 5G Plus runs primarily on the n78 band (3500 MHz), with n28 (700 MHz) used for wider coverage in some circles. Most 5G phones sold in India since 2021 support n78, but some early or imported models do not — a phone can be “5G” on paper yet miss the exact band Airtel uses in your city. Our guide on how to check if your phone is 5G compatible explains how to verify your model’s band list against your operator.
Step 3: Put the Airtel SIM in the Right Slot and Check Dual-SIM Behaviour
On many dual-SIM phones, only the primary SIM slot (or the SIM set as the data SIM) gets full 5G modem priority. Go to your SIM settings and make sure Airtel is set as the mobile data SIM. Some phones also disable 5G on the secondary SIM entirely when both SIMs are active — if 5G will not appear, try temporarily disabling the second SIM to test. This single change has fixed Airtel 5G not working for countless dual-SIM users.
Step 4: Update Your Phone’s Software
Manufacturers roll out 5G enablement in software updates, and this is the most overlooked cause of Airtel 5G not working. Several popular models in India — across Xiaomi, Realme, Samsung, and others — needed a specific OTA update to activate Airtel’s 5G bands even though the hardware supported them. Go to Settings > Software update and install everything pending, then restart. Check the manufacturer’s community forum for your exact model to see if a 5G-enablement update exists and whether other users confirm it works.
Step 5: The Advanced Check — Hidden Network Menu
If the standard settings look right but 5G still will not appear, use Android’s hidden Phone Information menu for diagnosis. Open the dialer and enter *#*#4636#*#*, tap Phone Information, and look at “Set preferred network type”. For testing, you can select NR only to force the phone to search purely for 5G (NR = New Radio, the technical name for 5G). If the 5G icon appears on NR only, your phone CAN see Airtel 5G and the issue is just the automatic mode selection — switch back to NR/LTE afterwards, because NR only disables calls (Airtel 5G still depends on LTE for voice calls).
Step 6: Reset Network Settings and Re-seat the SIM
Corrupted network configuration can block 5G registration silently. Reset it: Settings > System > Reset options > Reset Wi-Fi, mobile & Bluetooth (Android) or Settings > General > Transfer or Reset > Reset Network Settings (iPhone). You will lose saved Wi-Fi passwords, so note them first. Also try the physical basics: power off, remove the SIM, wipe it gently with a dry cloth, reinsert it firmly, and power on. A poorly seated SIM can cause intermittent registration failures that look like a 5G problem.
Do not ignore the indoor factor either — it is a common cause of airtel 5g not working. 5G signals, especially on the n78 band, penetrate concrete walls far worse than 4G does. It is completely normal to see 5G outdoors and drop to 4G two rooms inside your flat — that is physics, not a fault. Step onto a balcony or near a window and check whether the 5G icon appears; if it does, your phone and settings are fine and you simply live in a 5G shadow zone indoors. In that case, relying on home Wi-Fi inside and 5G outside is the practical setup.
Step 7: Check Your Plan and Contact Airtel
Finally, check the account side. While Airtel initially offered 5G at no extra cost on existing plans, ensure your current recharge is active and includes data — an expired plan or a talktime-only recharge will not give you 5G. Open the Airtel Thanks app and verify your plan details. If everything above checks out and 5G still does not work, raise a complaint in the Thanks app under network issues or call 121. Ask specifically whether 5G provisioning is active on your number — occasionally the network-side flag needs a refresh that only Airtel can trigger, and their support team can usually fix it within a few hours.
One more reality check: 5G drains battery noticeably faster than 4G, and in weak-signal areas your phone will keep hunting for 5G and heating up. If you enabled 5G and your battery life collapsed, switching back to 4G preferred mode indoors is a perfectly reasonable choice — you can re-enable 5G when you actually need the speed, such as for large downloads or hotspot use while travelling. For general speed issues on any network, our guide on how to increase Jio internet speed covers APN and DNS tweaks that help Airtel users too.
Sources: Airtel 5G Plus rollout information at airtel.in; 5G troubleshooting guidance from manufacturer support pages.
Frequently Asked Questions
My phone supports 5G but shows only 4G on Airtel. Why?
The usual culprits: Preferred network type not set to 5G, Airtel not set as the data SIM on dual-SIM phones, a pending software update, or simply no 5G coverage at your location.
Which 5G bands does Airtel use in India?
Airtel's 5G Plus runs primarily on the n78 band (3500 MHz). Your phone must support n78 — check your exact model's specs on the manufacturer's site.
Does Airtel 5G work when I use two SIMs?
On many dual-SIM phones only the data SIM gets full 5G priority. Set Airtel as the mobile data SIM, and try disabling the second SIM temporarily to test.
Does keeping 5G on drain the battery faster?
Yes, noticeably — especially in weak-signal areas where the phone keeps hunting for 5G. Use '5G Auto' mode so the phone drops to 4G when 5G adds no real benefit.
