Dear Friends it was next to impossible till now but now you can easily use your free jio sim in any of the 3g devices. You need to follow the trick very carefully.
- Download Shortcut master android application.
- After download simply install in your android device.
- Now open this app and select engineering mode or service menu from main menu.
- Here find system APP OPTION if this option is not available then dial *#226655653# from dialer app. Now Go To Key Input And Enter 0000 and Wait some times.
- After that select System app option and you need to change LTE bands.
- Now go to Select - Protocol - NAS - Network Control - Band Selection - LTE Band and select Band 40.
- After that restart your 3G phone and enjoy reliance jio 4G sim in your 3G phone.
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