In my case I think it was because voLTE wasn't activated and Bell turned off the 3g signal in my area. I found the info on other forums. For Xiaomi phones voLTE can be activated by dialing *#*#86583#*#*Everything works fine now in my case. Hope this ...
Same problem for me. For a few weeks now I can no longer make or receive calls, but data and sms services are working fine. This problem seems to affect many users. Could Lucky fix this issue? If not, the only option I see is to move to another cell ...
