Data Connection Problem

Hi Meizu Users,
I’m using Meizu M2 Note Indian version and on Flyme OS 4.5.4.2I. There is an issue with Data connectivity. I’m using Idea 3G sim card, when i on my mobile data it shows 3G over the signal but it will not connect to internet and working fine with wi-fi. Previously i used to get 3G when i’m not using internet and once i get connected to internet it used to br H or H+ but now its only 3G.
Even tried with Reliance Jio 4g and same issue repeats again 4G will be there on status bar over the signal and LTE will not appear. If anyone faced a similar issue and resolved it please tell me how to resolve.

Thank s in advance.I tried to factory reset the device but it didn’t work for me.

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