My MTN network recently started going off. It might go off for a week and come back on for 30 minutes and go again. It's been like that for a month now. I recharge the SIM often...
My number is 08100232553. I slot my micro SIM card on my phone, it shows SIM Access Error. I have tried it in different phones, but it's still too w same.
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...
