So follow below step & Enjoy Jio in 3G Handset!
Note :- This trick is little risky so try at on your risk.
Steps to use jio 4g sim in 3G handset:-
• First of all you have to open engineering mode in your device
• If you Don't have this App then install from Here
• After downloading just install Engineering app
• Now app and then select MTK settings > select preferred network option
• Then there you will see list of network there you have to select 4G LTE/WCDMA/GSM & then you have to reboot your device
• Now enter your jio sim in slot 1 and leave slot 2 as empty
√ That’s it now you can enjoy 3g network & you will get 3g speed not 4G!!
This Trick is for educational Purpose only.We are not responsible for anything!!