QUOTE(vanpersie91 @ Apr 15 2016, 06:45 PM)
Try check at security > permission setting whether u accidentally set system apps call denied from doing call?
QUOTE(papaya2 @ Apr 15 2016, 06:46 PM)
Where u buy?
Try update fw and see, if not send to xiaomi SC la
QUOTE(soulz69 @ Apr 15 2016, 06:51 PM)
u use default launcher or other launcher?
This is really a panic moment for me.
Yes it is related to launcher problem. Initially I used Nova launcher @ Mi3, everything no problem. So since I am so confortable with Nova on my previous Mi3, I used it here as well. Turns out the blue little phone is not usable and had to use the stock phone to be able to make calls. I think there's some permission related issues but I never want to go that far since I already have my problem solved.
TL;DR, if use nova launcher, swap the blue icon with stock, a.k.a green color icon will do.
EDIT: Let me see if I still able to find out any issues.

And my wallpaper goes out of focus. :/
This post has been edited by Belphegor: Apr 15 2016, 06:56 PM