I'm facing no call,sms in Jio....but internet normally working.... anyone knows?

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Why the region is set at china? I changed it to india and after restarting the phone it got back to china. Why is it china by default? Device is redmi note 3.
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This is completely off topic but here is the list of the best YouTube channel according to me if you love science you will agree with me too.
I have learned tons and tons of new stuff from last few years and i thought someone who is as curious as i am about finding answers of everything will surely appreciate these channels
:)
1. https://www.youtube.com/user/Kurzgesagt

2. https://www.youtube.com/user/minutephysics

3. https://www.youtube.com/user/1veritasium

4. https://www.youtube.com/user/itsokaytobesmart

5. https://www.youtube.com/user/destinws2

6. https://www.youtube.com/user/Vsauce

Enjoy :)

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MIUI 9 China Developer ROM Beta Test Schedule & Supported Devices:http://en.miui.com/thread-727744-1-1.html

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Great features. UPia payment feature and Live location sharing are my favourites.

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[Update: In Stable Version] WhatsApp lets you send any file type, bundles shared media, and modifies the call screen

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Worth a read for the interested ones...
The OnePlus 5 is up against fantastic competition in India, so is it still one of the best values around?
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