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...
Hello. I registered my sim sometime 2014 when I was about 15 years. Unknown to me the tech guy filled in his details instead of mine. I only got to know when I downloaded the...
Y'ello Etinosa. You can come over to our shop to re-register your line as well as carry out the Sim upgrade.
Below are the required details for a Sim registration update...
