Guide For Using 4G JIO in 3G

As we All know 4G jio sim card available which having trouble in 3G smart phones. So , here is a little trick for using 4G jio in 3G smartphone. Maybe , for some smartphones it will not work well . I am not guarantee 100% work . Backup all your data for security , before trying this tricks

This Guide is for
- for educational purpose
- Chipset Mediatek and Qualcomm
- For android Kitkat (4.4) later


Note :
this is not an official application of any company or product, this is made for the purpose of education. All risks ae yours.