Recently I came Across an issue in Xiaomi Redmi Note 3 (I have heard the issue exist for other Xiaomi devices such as Redmi 3s Prime) while using Reliance Jio 4G sim in it. Users can use internet even if the mobile data is off. This causes issues like battery drain and unwanted notifications etc. I searched internet for a solution and luckily able to fix the issue following few simple steps.
Verify the Access Point Name (APN) for your JIO network. APN is nothing but the name for the setting which is read by the phone to set-up a connection to your data carriers network. APN settings differs from network to network. Usually APN settings are downloaded automatically in modern phones just after you insert your sim card.
To check your APN settings in your Redmi Note 3 or in any phone having MIUI follow these steps below:
Goto Settings >> SIM cards & Mobile networks >> Select JIO under SIM card settings. Tap Access point names to see the APN settings for JIO. Usually you will find a profile named “internet”. Tap on the right arrow to edit/view the settings.
Scroll down and find the field called “APN type”. As you have the data always on issue right now, your APN type should be empty. Tap on it and type “default” then click OK. Find the menu icon at the bottom of the screen and select save.
Now verify using any browser that the internet is not working without mobile data turned on.