Your phone says 5G on the box, your Jio recharge is active, yet the status bar stubbornly shows 4G. If Jio 5G not working is the problem you are facing, the good news is that the cause is almost always one of a few fixable things, not a broken phone. Jio’s True 5G is a standalone network, and it has its own conditions that 4G never had.
Work through the checks below in order. Each one rules out a single cause, so do not skip ahead: a wrong network setting can hide a band problem, and an ineligible plan can look exactly like a coverage problem. By the end, you will know whether the fix sits in your settings, your recharge, or the phone itself.
Jio 5G Not Working? Check the 5G Bands First (n28 and n78)
Jio runs True 5G on three bands: 700 MHz (band n28), 3500 MHz (band n78), and 26 GHz (band n258). The n78 band carries most of the speed in cities, while the low-frequency n28 band is what pushes 5G deep inside homes, offices, and lifts. According to Jio, it is the only Indian operator holding 700 MHz spectrum, and that band quietly decides whether indoor 5G works at all.
A phone can be genuinely “5G” and still miss n28. Many early 5G models and some imported phones support n78 but not n28, so they catch 5G outdoors near a tower yet drop to 4G the moment you step inside. If a phone lacks n78 as well, it will never see Jio 5G anywhere, whatever you change in settings.
Check your model’s full band list under Settings > About phone, or on the manufacturer’s specification page for your exact variant. If you are not sure how to verify a handset, our guide on how to check if your phone is 5G compatible walks through the methods step by step.
Put the Jio SIM in Slot 1 and Make It the Data SIM
Your existing Jio 4G SIM works with 5G — Jio confirms that you do not need a new SIM for True 5G. But where the SIM sits, and which SIM your phone uses for data, matters more than most people expect. On many dual-SIM phones, only the SIM selected for mobile data can connect to 5G.
Some models also enable 5G only in the primary slot. If your Jio SIM sits in slot 2 while mobile data runs on another network, the Jio line will quietly stay on 4G. Move the Jio SIM to slot 1, then open Settings > SIM card & mobile networks (the menu name varies by brand) and set Jio as the default SIM for mobile data.
While testing, also turn off any “smart” dual-SIM or auto data-switching feature. These features are designed to jump to whichever SIM has the stronger signal, and they can silently move data back to your other SIM, making it look as if Jio 5G stopped working again.
Set the Network Mode to 5G Preferred
A phone set to “4G only” or “LTE preferred” will never connect to 5G, and this setting often survives from an old battery-saving tweak or a borrowed phone. Go to Settings > Mobile network > Jio > Preferred network type, and choose “5G/4G/3G/2G auto” or “5G preferred”, whichever your phone shows.
While you are in the network settings, toggle Airplane mode on for about 30 seconds and switch it off again. This forces a fresh registration on the network, and it clears a surprising number of stuck-on-4G cases after a SIM change, a fresh recharge, or travelling between cities.
Check Your Plan: True 5G Needs an Eligible Recharge
This is the check most people skip, and it is very often the real answer. According to Jio, you are eligible for the True 5G plan if you use a 5G device in a True 5G coverage city and have an active prepaid plan with more than 2 GB of data per day, or a Jio postpaid plan of ₹349 or above. Jio’s unlimited 5G benefit applies to recharges of ₹349 and above that offer 2 GB per day.
On a smaller plan, such as 1 GB or 1.5 GB per day, Jio offers 5G add-on packs priced at ₹51, ₹101, or ₹151 depending on your plan’s remaining validity. There is no separate invitation to wait for: if your plan qualifies and coverage exists where you are, 5G should activate on its own. Open the MyJio app and confirm your current plan before blaming the handset.
Confirm You Are Actually in a Jio 5G Coverage Area
Jio says True 5G is now available across most of India, but “most” is not “everywhere”. Basements, lifts, thick-walled old buildings, and the far edges of towns can all fall back to 4G, especially in areas where only the higher n78 band is live. Test the phone outdoors or near a window before concluding anything.
You can check the coverage map in the MyJio app or on Jio’s website for your exact locality. If a second Jio 5G phone also shows only 4G at the same spot, the problem is coverage, not your handset, and the only real fix is waiting for the network to reach your building or street.
Update the Phone’s Software, Then Restart
Jio’s True 5G is a standalone (SA) network, which means it does not depend on a 4G core, unlike the non-standalone 5G some other operators run. A number of phones sold around the 5G launch supported the hardware but needed a software update before they could use standalone 5G and Jio’s band combination properly. If an update is waiting under Settings > Software update, install it.
After updating, restart the phone once and test again, ideally outdoors. Also update your apps, including MyJio, from the Play Store. Skipping this step is why some users spend days changing settings when a ten-minute update was the entire fix.
Still Stuck on 4G? The Last Checks
Reset the network settings from Settings > System or General management > Reset > Reset mobile network settings. This wipes saved Wi-Fi passwords and Bluetooth pairings, so treat it as a late step rather than a first one. Then try the Jio SIM in another 5G phone: if it connects to 5G there, your phone is the problem.
If the SIM shows only 4G in the second phone too, visit a Jio store and ask for a SIM replacement; a faulty SIM is replaced free. In most cases, though, the answer turns out to be the plan, the data-SIM setting, or a missing n28 band — in that order. Work through the checks once, in sequence, and you will find which one it is.
Using an Airtel SIM with the same problem? Read our companion guide on how to fix Airtel 5G not working. The steps look similar, but Airtel’s network is non-standalone, so some checks and settings differ from Jio’s True 5G.
Frequently Asked Questions
Which Jio plan do I need for unlimited 5G data?
For prepaid, a plan of ₹349 or above that offers 2 GB of data per day includes the unlimited 5G benefit. Postpaid users need a plan of ₹349 or above. Users on 1 GB or 1.5 GB per day plans can add a 5G booster pack of ₹51, ₹101, or ₹151 depending on validity.
Why does Jio 5G work outside my house but not inside?
Indoor 5G depends heavily on the 700 MHz band (n28), which travels through walls far better than the 3500 MHz band (n78). If your phone lacks n28, or your building is in a weak n28 zone, the phone falls back to 4G indoors.
My phone is 5G, so why does Jio show only 4G?
The usual causes are a network mode set to 4G only, the Jio SIM not being selected as the data SIM, an ineligible recharge plan, missing n28 or n78 band support, or pending software that enables standalone 5G on your model.
Can both SIMs use 5G at the same time?
On most dual-SIM phones, only the SIM chosen for mobile data connects to 5G; the other SIM stays on 4G for calls and standby. Set Jio as the data SIM and, where possible, keep it in slot 1 while testing.
Will a software update really fix Jio 5G on my phone?
It can. Several phone models needed a software update to properly support Jio's standalone 5G network and its bands. If your phone shows a pending update, install it, restart, and test again before trying anything more drastic.
