Hello friends in this post i will show you how to use 4G sim in 3G android mobiles. If you are looking for can 3g phone be upgraded to 4g, how to make a 3g phone 4g, can we use 4g sim in 3g mobile, convert 3g phone to 4g, will a 4g sim work in a 3g phone or how to use jio 4g sim in 3g mobile.
Many people have question can i use a reliance jio 4g sim in a 3g phone? yes you can use your jio sim in 3g phone by trying these methods.
So get ready, here we go,
Read this: How To By Pass 1GB Data Limit Of Jio Happy New Year Offer
Only for you: How to fix Jio Speed Throttling Issue[Not Working, Speed Slow Issue]
![]() |
How to Use 4G Sim in 3G Android Mobile Phones |
Many people have question can i use a reliance jio 4g sim in a 3g phone? yes you can use your jio sim in 3g phone by trying these methods.
So get ready, here we go,
Read this: How To By Pass 1GB Data Limit Of Jio Happy New Year Offer
How to know which Chipset is used in android
CPU-Z |
CPU-Z app |
- Firstly You need to Download CPU-Z app android app to on yourdevice.
- Then install and Open it.
- Now you will see All your device information for example if you are using Mediatek chip set processor then you”ll see mediatek logo.
- If your android phone have mediatek processor then you try below trick.
Features of CPU-Z app:
- SoC (System On Chip) name, architecture, clock speed for each core ;
- System information : device brand & model, screen resolution, RAM, storage.;
- Battery information : level, status, temperature, capacity
- Sensors.
Requirements :
- Android 2.2 and above (version 1.03 and +)
You need to read this: How to Fix Jio Call Drop Issue or Not Connecting Issue
How to use Jio 4G sim in 3g android phones in Mediatek Chipset Processor

MTK Engineering Mode
MTK Engineering Mode |
- First of all you need to download Download Mtk Engineering Mode app in your mediatek android device.
- Then Install and Open it
- Then click on Mtk Settings.
- Now it will redirect to Engineering mode of your android device.
- Then scroll down and click on “Network selecting/Preferred Network” Option.
- Now you will see many network mode.
- Now just select 4G from the list.
- Then insert your 4G jio sim in 1st slot and restart your phone.
- After your phone restart you will see it not sowing network, don't worry wait for minimum 10 - 15 minute.
- Now you see your jio sim will working fine.
- But you will get 3G speed on your 4g sim.
Only for you: How to fix Jio Speed Throttling Issue[Not Working, Speed Slow Issue]
How to use 4G sim in 3g android mobile phones in Qualcomm Chipset Processor Devices
How to use 4G sim in 3g android mobile phones in Qualcomm Chipset Processor Devices |
Shortcut Master Lite app |
- First of all for opening Engineering mode in qualcomm chipset processor you need to download Shortcut Master Lite app.
- Now install and open it.
- Then click on menu.
- Now search this Keywords “Service Menu” Or “Engineering Mode”.
- Now you got Engineering Mode Change LTE bands.
- Or try this Dial *#2263# then Select Menu and Click Back again then Select Menu.
- Then go to Key Input and Enter “0000”
- Now select UE Setting from Popup.
- Then set this Configure Protocol > NAS > Network Control > Band Selection > LTE Band >
- Then Select “Band 40”.
- That's it.
- Then insert your 4G jio sim in 1st slot and turn on your phone.
- After your phone turn on you will see it not sowing network, don't worry wait for minimum 10 - 15 minute.
- Now you see your jio sim will working fine.
- But you will get 3G speed on your 4g sim.
- Reliance Jio MNP : Port Existing Number to Jio4G
- Jio Sim Supported Dongles, Modems & WiFi Routers
- Jio extend it's validity to March 31st 2017 - Mukesh Ambani
- How To Solve Jio 4G Voice Offline / Call Not Connecting Problem
Final Words:
If these tricks not works please comment. These tricks works on most of devices. This How to Use Reliance Jio 4G Sim in 3G Phone: 100% working method.