This is Anudeep from India. Recently 1 month back I bought Mi3 in china, the problem is now I came back to India. I am not unable to use 3G service here, I can use 2G but not 3G. I have contacted network customer care center and found that there is no problem from their side. I have even tried using other mobile network providers to see if 3G would work. I am using airtel (Hyderabad Location) and I have tried so many ways to counter the problem. I have also selected "preferred 3G" in network settings but whenever I select only 3G service, I am unable to get signals. So, I want to seek expert's advice regarding this.