How to use jio 4g in 3g device

This is a very cool and easy trick for the readers of our website

To use the Jio SIM card on any 3G phone, you need to follow these steps. Make sure to be careful in proceeding with these steps.

First, download and install the MTK Engineering Mode app on your phone from this link.

This app will let you run an advanced Setup from the MTK phones' Engineering Mode Menu. This is also known as Service Mode.

Then go to network settings 

Then Preferred network setting

Selecl lte/wcdma/2g 

Restart device

Make sure to put jio sim in 1st sim slot