No internet connection , bad network My wife’s sim has been having problem since yesterday , there’s no internet network she can only call but no one can call her , please what’s the problem she has restarted the phone so many times
Mtn sim upgrade is like a sim swap
You must drop your old sim
And put new one they give in Mtn shop or Mtn office
When u do that if still showing you 3g go to settings on...